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Слова на букву !kun-arti (15990)

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/euh kres"euhns/, n. continued or continuous growth. [1640-50; < ML accrescentia. See ACCRESCENT, -ENCE] * * *
/euh kres"euhnt/, adj. 1. increasing; enlarging, expanding, or enriching. 2. growing, as floral parts that increase in size after flowering has occurred. [1745-55; < L ...
/euh kreet"/, v., accreted, accreting, adj. v.i. 1. to grow together; adhere (usually fol. by to). v.t. 2. to add, as by growth. adj. 3. Bot. grown together. [1775-85; back ...
—accretive, accretionary, adj. /euh kree"sheuhn/, n. 1. an increase by natural growth or by gradual external addition; growth in size or extent. 2. the result of this ...
accretion disk
Astron. the rapidly spinning disk of gas that forms around the more compact component of a close binary star system as mass is transferred to the compact companion from the ...
See accretion. * * *
accretion disk n. A disk of interstellar material surrounding a celestial object with an intense gravitational field, such as a black hole. * * *
See accretionary. * * *
—accroachment, n. /euh krohch"/, v.t. to assume to oneself without right or authority; usurp. [1275-1325; ME acrochen < AF a(c)crocher to catch hold of, seize, usurp, OF: ...
accroides gum
/euh kroy"deez, ak roy"-/. See acaroid resin. [1935-40; alter. of NL acaroides. See ACAROID] * * *
ac·croi·des gum (ə-kroiʹdēz, ă-kroiʹ-) n. See acaroid resin.   [Alteration of New Latin acaroīdēs; see acaroid resin + gum1.] * * *
See accrue. * * *
/euh krooh"euhl/, n. 1. the act or process of accruing. 2. something accrued; accretion. [1875-80; ACCRUE + -AL2] * * *
accrual basis
a method of recording income and expenses in which each item is reported as earned or incurred without regard to when actual payments are received or made. Cf. cash ...
—accruable, adj. —accruement, n. /euh krooh"/, v.i., accrued, accruing. 1. to happen or result as a natural growth, addition, etc. 2. to be added as a matter of periodic gain ...
accrued dividend
an accumulated unpaid dividend on preferred stock. * * *
accrued expense
an expense incurred but not yet paid, as accrued interest on notes payable. [1980-85] * * *
accrued income
income earned but not yet received nor past due. Also called accrued revenue. [1980-85] * * *
accrued interest
interest accumulated at a given time but not yet due or paid. * * *
accrued liability
the amount of liability accumulated at a given time but not yet paid. * * *
See accruable. * * *
acct abbrev. 1. account 2. accountant * * *
1. account. 2. accountant. * * *
—acculturative, adj. /euh kul"cheuh rayt'/, v.t., v.i., acculturated, acculturating. to alter by acculturation. [1930-35; back formation from ACCULTURATION] * * *
—acculturational, adj. /euh kul'cheuh ray"sheuhn/, n. 1. the process of adopting the cultural traits or social patterns of another group. 2. the result of this ...
See acculturation. * * *
/euh kul'cheuh ray"sheuh nist/, n. a person who studies the process of acculturation. [ACCULTURATION + -IST] * * *
See acculturational. * * *
/euh kul"cheuh ruyz'/, v.t., acculturized, acculturizing. to cause (a nation, tribe, or other ethnic group) to adopt the culture of another people. Also, esp. Brit., ...
accumulative. * * *
—accumbency, n. /euh kum"beuhnt/, adj. 1. reclining; recumbent: accumbent posture. 2. Bot. lying against something. [1650-60; < L accumbent- (s. of accumbens, prp. of ...
See accumulate. * * *
—accumulable, adj. /euh kyooh"myeuh layt'/, v., accumulated, accumulating. v.t. 1. to gather or collect, often in gradual degrees; heap up: to accumulate wealth. v.i. 2. to ...
/euh kyooh'myeuh lay"sheuhn/, n. 1. act or state of accumulating; state of being accumulated. 2. that which is accumulated; an accumulated amount, number, or mass. 3. growth by ...
accumulation point
Math. a point such that every neighborhood of the point contains at least one point in a given set other than the given point. Also called cluster point, limit point. Cf. strong ...
—accumulatively, adv. —accumulativeness, n. /euh kyooh"myeuh lay'tiv, -leuh tiv/, adj. 1. tending to accumulate or arising from accumulation; cumulative. 2. tending to ...
See accumulative. * * *
/euh kyooh"myeuh lay'teuhr/, n. 1. a person or thing that accumulates. 2. a register or electric device on an arithmetic machine, as an adding machine, cash register, or digital ...
/ak"yeuhr euh see/, n., pl. accuracies. 1. the condition or quality of being true, correct, or exact; freedom from error or defect; precision or exactness; correctness. 2. Chem., ...
—accurately, adv. —accurateness, n. /ak"yeuhr it/, adj. 1. free from error or defect; consistent with a standard, rule, or model; precise; exact. 2. careful or meticulous: an ...
See accurate. * * *
See accurately. * * *
/ak"yeuh ruyz'/, v.t., accurized, accurizing. to improve the accuracy of (a firearm). Also, esp. Brit., accurise. [ACCUR(ATE) + -IZE] * * *
—accursedly /euh kerr"sid lee/, adv. —accursedness, n. /euh kerr"sid, euh kerrst"/, adj. 1. under a curse; doomed; ill-fated. 2. damnable; detestable. Also, accurst /euh ...
See accursed. * * *
See accursedly. * * *
Accursius, Franciscus
▪ Italian legal scholar Italian  Francesco Accorso   born c. 1182, Bagnolo, Tuscany [Italy] died c. 1260, Bologna       Italian legal scholar and leading jurist of ...
accus abbrev. accusative * * *
accusative. * * *
/euh kyooh"zeuhl/, n. accusation. [1585-95; ACCUSE + -AL2] * * *
/ak'yoo zay"sheuhn/, n. 1. a charge of wrongdoing; imputation of guilt or blame. 2. the specific offense charged: The accusation is murder. 3. the act of accusing or state of ...
/euh kyooh'zeuh tuy"veuhl/, adj. pertaining to the accusative case. [1870-75; ACCUSATIVE + -AL1] * * *
—accusatively, adv. /euh kyooh"zeuh tiv/, adj. 1. Gram. a. (in certain inflected languages, as Latin, Greek, or Russian) noting a case whose distinctive function is to indicate ...
See accusative. * * *
—accusatorially, adv. /euh kyooh'zeuh tawr"ee euhl, -tohr"-/, adj. of, like, or pertaining to an accuser. [1815-25; ACCUSATORY + -AL1] * * *
See accusatory. * * *
/euh kyooh"zeuh tawr'ee, -tohr'ee/, adj. containing an accusation; accusing: an accusatory look. Also, accusative. [1595-1605; < L accusatorius, equiv. to accusa(re) to ACCUSE + ...
—accusable, adj. —accusably, adv. —accusant, n. —accusingly, adv. /euh kyoohz"/, v., accused, accusing. v.t. 1. to charge with the fault, offense, or crime (usually fol. ...
/euh kyoohzd"/, adj. 1. charged with a crime, wrongdoing, fault, etc.: the accused boy. n. 2. a person or persons charged in a court of law with a crime, offense, etc. (often ...
accused, rights of
▪ law       in law, the rights and privileges of a person accused of a crime, guaranteeing him a fair trial. These rights were initially (generally from the 18th century ...
accused, rights of the
In law, the rights and privileges of a person accused of a crime. In most modern legal systems these include the presumption of innocence until proved guilty, trial by jury, ...
/euh kyooh"zeuhr/, n. a person who accuses, esp. in a court of law: a trial in which the accuser and accused may freely speak. [1300-50; ME; see ACCUSE, -ER1] * * *
See accuser. * * *
/euh kus"teuhm/, v.t. to familiarize by custom or use; habituate: to accustom oneself to cold weather. [1425-75; late ME < MF acoustumer. See AC-, CUSTOM] * * *
—accustomedly, adv. —accustomedness, n. /euh kus"teuhmd/, adj. 1. customary; usual; habitual: in their accustomed manner. 2. habituated; acclimated (usually fol. by to): ...
/ak"yoo tayn'/, Pharm., Trademark. a brand of isotretinoin. * * *
(United States) Arms Control and Disarmament Agency. * * *
/ays/, n., v., aced, acing, adj. n. 1. a playing card or die marked with or having the value indicated by a single spot: He dealt me four aces in the first hand. 2. a single spot ...
1. American Council on Education. 2. Army Corps of Engineers. * * *
Ace bandage
Trademark. a brand of elasticized bandage, usually in a continuous strip, for securely binding an injured wrist, knee, or other joint. * * *
ace in the hole
1. Poker. an ace dealt and held face down, esp. in stud poker. 2. an advantage or a resource kept back until the proper opportunity presents itself: His ace in the hole is his ...
ACE inhibitor
/ays, ay"see"ee"/ any of a group of vasodilator drugs used in the treatment of hypertension and heart failure. [1980-85; A(ngiotensin)-C(onverting) E(nzyme)] * * *
ace point
the first point in backgammon. [1875-80] * * *
Ace, Goodman
▪ American writer born Jan. 15, 1899, Kansas City, Mo., U.S. died March 25, 1982, New York, N.Y.       American radio writer and performer and producer-writer for ...
/ays"huy", -huy'/, adj. 1. (of a poker hand) having an ace as the highest card. 2. held in high esteem: He has an ace-high reputation. [1875-80, Amer.] * * *
/as'euh byooh"tl awl', -ol'/, n. Pharm. a beta blocker, C18H28N2O4, used in the management of hypertension, angina pectoris, and cardiac arrhythmias. [1965-70; coined from ...
/euh see"dee euh/, n. 1. sloth (def. 1). Cf. deadly sins. 2. laziness or indifference in religious matters. [1600-10; < LL acedia < Gk akédeia, equiv. to akedé(s) (a- A-6 + ...
▪ province, Indonesia also spelled  Acheh,  Achin,  or  Atjeh , in full  Nanggroe Aceh Darussalam  or  English  State of Aceh, Abode of ...
▪ people also spelled  Atjehnese,  or  Achinese        one of the main ethnic groups on the island of Sumatra, Indonesia. They were estimated to number roughly ...
Acehnese War
▪ Southeast Asian history       (1873–1904), an armed conflict between The Netherlands and the Muslim sultanate of Acheh (now Aceh) in northern Sumatra that resulted ...
ACE inhibitor (ās) n. Any of a class of drugs that cause vasodilation and are used to treat hypertension and heart failure.   [a(ngiotensin) c(onverting) e(nzyme) ...
/euh sel"deuh meuh, euh kel"-/, n. 1. the place near Jerusalem purchased with the bribe Judas took for betraying Jesus. Acts 1:18, 19. 2. any place of slaughter and ...
/ay sel"yeuh leuhr/, adj. 1. being without cells. 2. composed of tissue not divided into separate cells, as striated muscle fibers. [1935-40; A-6 + CELLULAR] * * *
acellular vaccine n. A vaccine composed of only those fragments of bacterial cells that are best suited to stimulating a strong immune response. * * *
/ay'see neuhs thee"zheuh/, n. Psychiatry. loss of the physical awareness of one's body. Also, acoenaesthesia. [A-6 + CENESTHESIA] * * *
/ay sen"trik/, adj. 1. not centered; having no center. 2. Genetics. of or pertaining to a chromosome or chromatid that lacks a centromere. Cf. acrocentric, metacentric, ...
/ay sef"euh leuhs/, adj. 1. Also, acephalic /ay'seuh fal"ik/. Zool. headless; lacking a distinct head. 2. without a leader or ruler. [1725-35; < Gk aképhalos; see A-6, ...
/as"euh fayt'/, n. Chem. a white solid compound, C4H10NO3PS, used as an insecticide against a wide range of plant pests, including aphids, budworms, and tent ...
acepromazine or acetyl promazine [as΄ə prō′mə zēn΄, as΄əpräm′əzēn΄; as΄ə prō′məzin, as΄ə präm′əzin] n. an orange-colored oil, C19H22N2OS, used as a ...
/euh say"kyeuh/; Sp. /ah se"kyah/, n., pl. acequias /-kyeuhz/; Sp. /-kyahs/. Southwestern U.S. an irrigation ditch. [1835-45, Amer.; < Sp < Ar al-saqiyah the irrigation ditch] * ...
/ay'seuh ram"ik/, adj. not producing pottery: an aceramic South American culture. [A-6 + CERAMIC] * * *
/as"euh rayt', -euhr it/, adj. acerose1. [1840-50; < L acer- (by the error analyzed for ACEROSE1) + -ATE1] * * *
/euh serrb"/, adj. acerbic. [1650-60; < L acerbus; see ACERBIC] * * *
v. /as"euhr bayt'/; adj. /euh serr"bit/, v., acerbated, acerbating, adj. v.t. 1. to make sour or bitter. 2. to exasperate. adj. 3. embittered. [1725-35; < L acerbatus, ptp. of ...
—acerbically, adv. /euh serr"bik/, adj. 1. sour or astringent in taste: Lemon juice is acerbic. 2. harsh or severe, as of temper or expression: acerbic criticism. [1860-65; < L ...
See acerbic. * * *
/euh serr"bi tee/, n. 1. sourness, with roughness or astringency of taste. 2. harshness or severity, as of temper or expression. [1565-75; < L acerbitas. See ACERBIC, -ITY] * * *
/as'euh roh"leuh/, n. 1. the cherrylike fruit of a small tree, Malpighia glabra, of the West Indies and adjacent areas, having a high concentration of vitamin C. 2. the tree ...
acerose1 /as"euh rohs'/, adj. Bot. needle-shaped, as the leaves of the pine. Also, acerate, acerous. [1775-85; special sense of ACEROSE2, by misattribution of acer- to L acus ...
acerous1 /as"euhr euhs/, adj. Bot. acerose1. [1840-50] acerous2 /ay sear"euhs/, adj. Zool. 1. having no antennae. 2. having no horns. [ < Gk akerós, equiv. to a- A-6 + -keros, ...
—acervately, adv. /euh serr"vit, -vayt, as"euhr vayt'/, adj. Bot., Mycol. pertaining to growth, esp. of fungi, that forms a dense, heaped-up mass. [1840-50; < L acervatus ...
/euh serr"vyeuh leuhs/, n., pl. acervuli /-luy'/. Mycol. (in certain fungi) an asexual fruiting body consisting of a mat of hyphae that give rise to short-stalked ...
—acescence, acescency, n. /euh ses"euhnt/, adj. turning sour; slightly sour; acidulous. [1725-35; < L acescent- (s. of acescens souring, prp. of acescere), equiv. to ac- sharp ...
—acesodynous /as'euh sod"n euhs/, adj. /euh ses"euh duyn'/, adj. mitigating pain; anodyne. [ < Gk akesódyn(os), equiv. to akes- (var. s. of akeîsthai to heal) + -odynos, adj. ...
▪ Greek mythology       in Greek mythology, legendary king of Segesta (Greek Egesta) in Sicily. His mother, Egesta, had been sent from Troy by her parents to save her ...
var. of aceto-, esp. before a vowel. * * *
See acetabulum. * * *
▪ alga genus  genus of one-celled, umbrella-like green algae found in subtropical seas, called the “mermaid's wine glass.” At the top of the tall, slender stalk, 0.5 to ...
/as'i tab"yeuh leuh fawrm'/, adj. Bot., Mycol. saucer-shaped, as the fruiting bodies of certain lichens. [1825-35; < NL; see ACETABULUM, -I-, -FORM] * * *
—acetabular, adj. /as'i tab"yeuh leuhm/, n., pl. acetabula /-leuh/. 1. Anat. the socket in the hipbone that receives the head of the thighbone. See illus. under pelvis. 2. ...
/as"i tal'/, n. Chem. 1. Also called diethylacetal. a colorless, volatile, sparingly water-soluble liquid, C6H14O2, having a nutlike aftertaste, obtained from acetaldehyde and ...
/as'i tal"deuh huyd'/, n. Chem. a volatile, colorless, water-soluble liquid, C2H4O, having a pungent, fruitlike odor: used chiefly in the silvering of mirrors and in organic ...
/as"i tal'dawl, -dol/, n. Chem. aldol (def. 1). [ACETALD(EHYDE) + -OL1] * * *
/euh set"euh muyd', as'i tam"uyd/, n. Chem. a white, water-soluble, crystalline solid, C2H5NO, the amide of acetic acid: used chiefly in organic synthesis. Also, acetamid /euh ...
/euh see'teuh min"euh feuhn, as'i teuh-/, n. Pharm. a crystalline substance, C8H9NO2, used as a headache and pain reliever and to reduce fever. [1955-60; ACET- + AMINO- + ...
/as'i tan"l uyd'/, n. Chem., Pharm. a white, crystalline, odorless, organic powder, C8H9NO, produced by the action of glacial acetic acid on aniline, used chiefly in organic ...
/euh see'teuh nis"i deen', -din, as'i teuh-/, n. Pharm. methacetin. [ACET- + ANISE + -IDE + -INE2] * * *
/as"i tayt'/, n. 1. Chem. a salt or ester of acetic acid. 2. Also called acetate rayon. a synthetic filament, yarn, or fabric composed of a derivative of the acetic ester of ...
acetated [as′ə tāt΄id] adj. treated with acetic acid * * *
/euh see'teuh zoh"leuh muyd', -mid, -zol"euh-, as'i teuh-/, n. Pharm. a crystalline powder, C4H6N4O3S2, used chiefly in the treatment of glaucoma and edema. [1950-55; ACET- + ...
/euh see"tik, euh set"ik/, adj. pertaining to, derived from, or producing vinegar or acetic acid. [1800-10; ACET- + -IC] * * *
acetic acid
Chem. a colorless, pungent, water-miscible liquid, C2H4O2, the essential constituent of vinegar, produced by oxidation of acetaldehyde, bacterial action on ethyl alcohol, the ...
acetic acid amide
acetamide. * * *
acetic anhydride
Chem. a colorless, pungent liquid, C4H6O3, the anhydride of acetic acid: used chiefly as a reagent and in the production of plastics, film, and fabrics derived from ...
acetic ether
Chem. See ethyl acetate. * * *
acetic acid n. A clear, colorless organic acid, CH3COOH, with a distinctive pungent odor, used as a solvent and in the manufacture of rubber, plastics, acetate fibers, ...
See acetify. * * *
See acetification. * * *
—acetification, acetation /as'i tay"sheuhn/, n. —acetifier, n. /euh see"teuh fuy', euh set"euh-/, v.t., v.i., acetified, acetifying. to turn into vinegar; make or become ...
—acetimetric /euh see'teuh me"trik, as'i teuh-/, adj. —acetimetry, n. /as'i tim"i teuhr/, n. Chem. acetometer. [1870-75] * * *
/as"i tin/, n. Chem. a colorless, thick, hygroscopic liquid, C5H10O4: used chiefly in the manufacture of explosives. Also called glyceryl monoacetate, monacetin, ...
a combining form with the meanings "vinegar," "acetic acid," used in the formation of compound words (acetometer), esp. in the names of chemical compounds in which acetic acid or ...
acetoacetic acid
/euh see'toh euh see"tik, -euh set"ik, as'i toh-/, Chem. a colorless, oily liquid, C4H6O3, soluble in water, alcohol, and ether: used in synthetic organic chemistry. Also called ...
ac·e·to·a·ce·tic acid (ăs'ĭ-tō-ə-sēʹtĭk, ə-sē'tō-) n. A ketone body, CH3COCH2COOH, excreted in the urine in certain diabetic conditions. * * *
/euh see'teuh bak"teuhr, as'i toh-, euh see"teuh bak'teuhr/, n. Bacteriol. any of several ellipsoidal or rodshaped aerobic bacteria of the genus Acetobacter, certain species of ...
/euh set"oh in/, n. Chem. a yellowish, pleasant-smelling liquid, C4H8O2, obtained from various carbohydrates, as glucose, by fermentation: used chiefly in the manufacture of ...
—acetometrical /euh see'teuh me"tri keuhl, as'i teuh-/, acetometric, adj. —acetometrically, adv. —acetometry, n. /as'i tom"i teuhr/, n. Chem. an instrument for measuring ...
—acetonic /as'i ton"ik/, adj. /as"i tohn'/, n. Chem. a colorless, volatile, water-soluble, flammable liquid, C3H6O, usually derived by oxidation of isopropyl alcohol or by ...
acetone body
Biochem. See ketone body. [1925-30] * * *
acetone body n. See ketone body. * * *
/euh see'teuh nee"mee euh, as'i teuh-/, n. Pathol. ketonemia. [ACETONE + -EMIA] * * *
See acetone. * * *
/as'i toh nuy"tril, -treel, euh see'toh-/, n. Chem. a colorless, poisonous, water-soluble liquid, C2H3N, having an etherlike odor: used chiefly in organic synthesis and as a ...
/euh see'toh noor"ee euh, -nyoor"-, as'i toh-/, n. Pathol. ketonuria. [ACETONE + -URIA] * * *
/euh see'toh feuh net"i din, as'i toh-/, n. Pharm. phenacetin. [1905-10; ACETO- + PHENETIDIN] * * *
/euh see'toh feuh nohn", as'i toh-/, n. Chem. a colorless liquid, C8H8O, having a sweet odor: used chiefly as a scent in the manufacture of perfume. Also called acetylbenzene, ...
/euh see'toh stee"euh rin, -stear"in, as'i toh-/, n. Chem. a waxlike, nongreasy solid, C23H44O5: used chiefly as a food preservative and as a plasticizer. [ACETO- + STEARIN] * * *
/as"i teuhs, euh see"-/, adj. 1. containing or producing acetic acid. 2. sour; producing or resembling vinegar; vinegary. Also, acetose /as"i tohs', euh see"tohs/. [1770-80; < LL ...
/euh see"teuhm/, n. a preparation having vinegar or dilute acetic acid as the solvent. [ < L: vinegar; cf. ACETO-] * * *
/euh seet"l, euh set"l, as"i tl/, adj. Chem. containing the acetyl group. [1860-65; ACET- + -YL] * * *
acetyl chloride
Chem. a colorless, toxic, and fuming liquid of pungent odor, C2H3OCl, soluble in ether, acetone, and acetic acid: used in the manufacture of dyes and pharmaceuticals. * * *
acetyl group
Chem. the univalent group, CH3CO-, derived from acetic acid. Also called acetyl radical. * * *
acetyl promazine
acetyl promazine [prō′mə zēn΄, präm′əzēn΄; prō′məzin, präm′əzin] n. ACEPROMAZINE * * *
a·ce·tyl-co·A (ə-sētʹl-kōʹāʹ, ăs'ĭ-tl-) n. See acetyl coenzyme A. * * *
acetyl-coenzyme A
/euh seet"l koh en"zuym, euh set"-, as"i tl-/, n. Biochem. the acetylated form of coenzyme A, formed as an intermediate in the oxidation of carbohydrates, fats, and protein in ...
/euh seet'l an"l in, -uyn', euh set'-, as'i tl-/, n. Chem. acetanilide. [ACETYL + ANILINE] * * *
—acetylation, n. —acetylative, adj. /euh set"l ayt'/, v., acetylated, acetylating. Chem. v.t. 1. to introduce one or more acetyl groups into (a compound). v.i. 2. to become ...
See acetylate. * * *
/euh seet'l ben"zeen, -ben zeen", euh set'-, as'i tl-/, n. Chem. acetophenone. [ACETYL + BENZENE] * * *
—acetylcholinic /euh seet'l koh lin"ik, euh set'-, as'i tl-/, adj. /euh seet'l koh"leen, euh set'-, as'i tl-/, n. 1. Biochem. the acetic acid ester of choline, C7H17NO3, ...
/euh seet'l koh'leuh nes"teuh rays', -rayz', euh set'-, as'i tl-/, n. Biochem. an enzyme that hydrolyzes the neurotransmitter acetylcholine: its action is blocked by nerve gases ...
acetylcoenzyme A
acetyl coenzyme A n. A compound, C25H38N7O17P3S, that functions as a coenzyme in many biological acetylation reactions and is formed as an intermediate in the oxidation of ...
/euh seet'l sis"tee een', -in, euh set'-, as'i tl-/, n. Pharm. a substance, C5H9NO3S, used in solution as an inhalant to dissolve mucus in the treatment of chronic bronchitis, ...
—acetylenic /euh set'l en"ik/, adj. /euh set"l een', -in/, n. Chem. a colorless gas, C2H2, having an etherlike odor, produced usually by the action of water on calcium carbide ...
acetylene series
Chem. See alkyne series. * * *
acetylene series n. A series of unsaturated aliphatic hydrocarbons, each containing at least one triple carbon bond, having chemical properties resembling acetylene and having ...
See acetylene. * * *
acetylformic acid
/euh seet"l fawr"mik, euh set"-, as"i tl-; euh seet'l fawr"mik, euh set'-, as'i tl-/, Chem. See pyruvic acid. [ACETYL + FORMIC ACID] * * *
/as'i til"ik/, adj. of, pertaining to, or characteristic of the acetyl group. [1880-85; ACETYL + -IC] * * *
/euh set"l uyd'/, n. Chem. any compound derived from acetylene by the replacement of one or both of its hydrogen atoms by a metal, as silver acetylide, Ag2Cl2. [ACETYL + -IDE] * ...
—acetylization, n. —acetylizer, n. /euh set"l uyz'/, v.t., v.i., acetylized, acetylizing. acetylate. Also, esp. Brit., acetylise. [ACETYL + -IZE] * * *
/euh seet'l meth'euhl kahr"beuh nawl', -nol', euh set'-, as'i tl-/, n. Chem. acetoin. [ACETYL + METHYL + CARBINOL] * * *
/euh seet'l seuh lis"euh layt', euh set'-, as'i tl-/, n. Pharm. a salt or ester of acetylsalicylic acid. [1955-60; ACETYLSALICYL(IC ACID) + -ATE2] * * *
acetylsalicylic acid
/euh seet"l sal'euh sil"ik, euh set"-, as"i tl-; euh seet'l sal'euh sil"ik, euh set'-, as'i tl-/, Pharm. aspirin (def. 1). [1895-1900; ACETYL + SALICYLIC ACID] * * *
a·ce·tyl·sal·i·cyl·ic acid (ə-sēt'l-săl'ĭ-sĭlʹĭk) n. See aspirin. * * *
Acevedo Díaz, Eduardo
▪ Uruguayan writer and politician born April 20, 1851, Villa de la Unión, Uruguay died June 18, 1924, Buenos Aires, Argentina       writer and politician, considered ...
acey-deucey [ās′ē do͞os′ē] n. 〚
/ay"see dooh"see, -dyooh"-/, n. 1. a form of backgammon in which a player, upon rolling a 1-2, moves 3 and then is allowed to name and play any doublet and to roll again. adj. 2. ...
n a US make of elastic bandage. It is often used by runners for muscle pain. * * *
/ahkh/, interj. German. alas; oh. * * *
automated clearinghouse. * * *
Biochem. acetylcholine. * * *
/ay"kab/, n. Douay Bible. Ahab (def. 1). * * *
/ay"kad/, n. Douay Bible. Akkad. * * *
/euh kee"euh/, n. an ancient district in S Greece, on the Gulf of Corinth. * * * ▪ region, Greece Modern Greek  Akhaï´a   nomós (department) and historic region of ...
/euh kee"euhn/, adj. 1. of or pertaining to Achaea or the Achaeans. 2. (in the Iliad) Greek. n. 3. an inhabitant of Achaea. 4. a Greek, esp. a member of the Achaean League. 5. a ...
Achaean League
a political confederation of Achaean and other Greek cities, established in the late 3rd century B.C. and dissolved by the Romans in 146 B.C. * * * 3rd-century BC confederation ...
/euh kee"meuh neez', euh kem"euh-/, n. fl. 7th century B.C., Persian king: traditional founder of the Achaemenid dynasty. [ < Gk Achaiménes < OPers Hachamanish-] * * * ▪ ...
/ak'euh mee"nee euhn/, adj. of or pertaining to the Achaemenids or their language, as recorded in cuneiform inscriptions. [1710-20; < L Achaemeni(us) ( < Gk Achaimén(es) ...
Achaemenian dynasty
(559–330 BC) Early Persian dynasty. It derives its name from Achaemenes, who is thought to have lived in the early 7th century BC. From his son Teispes were descended two ...
/euh kee"meuh nid, euh kem"euh-/, n., pl. Achaemenids, Achaemenidae /ak'euh men"i dee'/, Achaemenides /ak'euh men"i deez'/. a member of the dynasty of kings in ancient Persia ...
Achaemenid Dynasty
▪ Egyptian dynasty       the Persian 27th dynasty of Egypt (525–404 BC), founded by Cambyses II of Persia and named after his family of the ...
▪ people       South American Indian people of Venezuela and eastern Colombia. They speak a language of the Maipurean Arawakan group. Traditionally, the Achagua had ...
/ak'euh lay"zheuh, -zhee euh, -zee euh/, n. Med. inability of a circular muscle, esp. of the esophagus or rectum, to relax, resulting in widening of the structure above the ...
/ay"kan/, n. a member of the tribe of Judah who, with his family, was stoned to death for stealing forbidden spoils. Josh. 7:19-26. * * *
/euh kay"teez/, n. 1. (in the Aeneid) the faithful companion and friend of Aeneas. 2. a faithful friend or companion. * * *
/ay"kaz/, n. Douay Bible. Ahaz. * * *
/ayk/, v., ached, aching, n. v.i. 1. to have or suffer a continuous, dull pain: His whole body ached. 2. to feel great sympathy, pity, or the like: Her heart ached for the ...
Acheampong, Ignatius Kutu
▪ chief of state, Ghana born Sept. 23, 1931, Kumasi, Gold Coast died June 16, 1979, Accra, Ghana       Ghanaian army officer, who, after leading a military revolt that ...
/ah chay"bay/, n. Chinua /chin"wah/, born 1930, Nigerian novelist. * * *
Achebe, (Albert) Chinua(lumogu)
born Nov. 16, 1930, Ogidi, Nigeria Nigerian Igbo novelist. Concerned with emergent Africa at its moments of crisis, he is acclaimed for depictions of the disorientation ...
Achebe, Chinua
▪ Nigerian author in full  Albert Chinualumogu Achebe  born Nov. 16, 1930, Ogidi, Nigeria    prominent Igbo (Ibo) novelist acclaimed for his unsentimental depictions of ...
A·che·be (ä-chāʹbā), Chinua. Born 1930. Nigerian writer whose works, including the novel Things Fall Apart (1958), describe traditional African life in conflict with ...
/euh kuy"leuh ree/, adj. Bot. achilary. [1865-70] * * *
Achelous River
Longest river in Greece. It rises in the Pindus Mountains and flows south 140 mi (220 km) to the Ionian Sea. Hydroelectric dams harness its waters at Kastraki and Kremasta. In ...
Achenbach, Andreas
▪ German painter born Sept. 29, 1815, Kassel, Hesse died April 1, 1910, Düsseldorf, Ger.       landscape painter, a pioneer of the German realist school. He studied at ...
Achenbach, Oswald
▪ German painter born Feb. 2, 1827, Düsseldorf, Prussia died Feb. 1, 1905, Düsseldorf, Ger.       landscape painter of the Düsseldorf school who is distinguished ...
—achenial /ay kee"nee euhl, euh kee"-/, adj. /ay keen", euh keen"/, n. Bot. any small, dry, hard, one-seeded, indehiscent fruit. Also, akene. [1835-45; < NL achaenium, equiv. ...
/ah'cheuh neez", -nees", ach'euh-/, pl. Achenese. Atjehnese. * * *
▪ China Wade-Giles romanization  A-ch'eng        former city, central Heilongjiang (Heilungkiang) sheng (province), far northeastern China. In 2006 it was ...
See achene. * * *
/ay"keuhr nahr'/, n. Astron. a star of the first magnitude in the constellation Eridanus. [ < Ar akhir al-nahr end of the river] * * *
/ak"euh ron'/, n. 1. Class. Myth. a river in Hades over which Charon ferried the souls of the dead. 2. the infernal regions; hell; Hades. * * * ▪ river, ...
/ach"euh seuhn/, n. 1. Dean (Gooderham) /good"euhr ham', -euhm/, 1893-1971, U.S. statesman: Secretary of State 1949-53. 2. Edward Goodrich /good"rich/, 1856-1931, U.S. chemist. * ...
Acheson, Dean
▪ United States statesman in full  Dean Gooderham Acheson  born April 11, 1893, Middletown, Connecticut, U.S. died October 12, 1971, Sandy Spring, Maryland  U.S. secretary ...
Acheson, Dean (Gooderham)
born April 11, 1893, Middletown, Conn., U.S. died Oct. 12, 1971, Sandy Spring, Md. U.S. secretary of state (1949–53). After graduating from Yale University and Harvard Law ...
Acheson, Edward Goodrich
born March 9, 1856, Washington, Pa., U.S. died July 6, 1931, New York, N.Y. U.S. inventor. He helped develop the incandescent lamp and in 1881 installed the first electric ...
Acheson, Lila Bell
▪ American publisher and philanthropist born Dec. 25, 1889, Virden, Man., Can. died May 8, 1984, Mount Kisco, N.Y., U.S.       American publisher and philanthropist ...
Acheson,Dean Gooderham
Ach·e·son (ăchʹĭ-sən), Dean Gooderham. 1893-1971. American statesman who promoted the Marshall Plan and helped establish NATO. * * *
/euh shooh"lee euhn/, adj. of, pertaining to, or typical of a Lower Paleolithic culture of the middle Pleistocene Epoch, characterized by large hand axes and cleavers made by the ...
Acheulean industry
Stone-tool industry of the Lower Paleolithic Period characterized by bifacial stone tools with round cutting edges and typified especially by an almond-shaped (amygdaloid) flint ...
A·cheu·li·an also A·cheu·le·an (ə-sho͞oʹlē-ən) adj. Of or relating to a stage of tool culture of the Lower Paleolithic Period between the second and third ...
See achieve. * * *
—achievable, adj. —achiever, n. /euh cheev"/, v., achieved, achieving. v.t. 1. to bring to a successful end; carry through; accomplish: The police crackdown on speeders ...
a·chieved (ə-chēvdʹ) adj. Highly skilled or developed; accomplished: “The author... is not merely lucky, but an achieved and deserving fiction writer” (Wright Morris). * ...
achieved status
Sociol. the social position a person gains as a result of personal effort. Cf. ascribed status. [1960-65] * * *
/euh cheev"meuhnt/, n. 1. something accomplished, esp. by superior ability, special effort, great courage, etc.; a great or heroic deed: his remarkable achievements in art. 2. ...
achievement age
Psychol. the level of educational development of an individual as determined by an achievement test and based on a comparison of the examinee's score with the average score of ...
achievement quotient
Psychol. achievement age divided by chronological age, usually expressed as a multiple of 100. The achievement quotient of a ten-year-old child whose achievement age equals that ...
achievement test
a test designed to measure the knowledge or proficiency of an individual in something that has been learned or taught, as arithmetic or typing. Cf. intelligence test. [1920-25] * ...
See achievable. * * *
/euh kuy"leuh ree/, adj. Bot. having no labellum or lip, or one that is undeveloped, as in the flower of certain orchids. Also, acheilary. [A-6 + CHIL- + -ARY] * * *
/ak"euhl/, n. an island off the coast of NW Ireland. 14 mi. (23 km) long; 11 mi. (18 km) wide. * * *
Achill Island
▪ island, Ireland  mountainous island off the west coast of Ireland. It is part of County Mayo, joined to the mainland by a bridge across Achill Sound. The island is ...
(as used in expressions) Braudel Paul Achille Fernand Debussy Achille Claude Varèse Edgard Victor Achille Charles * * *
/ak'euh lee"euh, euh kil"ee euh/, n. any composite plant of the genus Achillea, having toothed or divided leaves and flat-topped clusters of flowers, and including the yarrow and ...
—Achillean /ak'euh lee"euhn, euh kil"ee-/, adj. /euh kil"eez/, n. Class. Myth. the greatest Greek warrior in the Trojan War and hero of Homer's Iliad. He killed Hector and was ...
Achilles heel
a portion, spot, area, or the like, that is especially or solely vulnerable: His Achilles heel is his quick temper. Also, Achilles' heel. [1800-10] * * *
Achilles Painter
flourished 5th century BC Greek vase painter, named for an amphora decorated with a painting of Achilles and Briseis attributed to him. He was active in Athens in the time of ...
Achilles paradox
▪ logic       in logic, an argument attributed to the 5th-century BC Greek philosopher Zeno (Zeno Of Elea), and one of his four paradoxes described by Aristotle in the ...
Achilles reflex.
See ankle jerk. Also, Achilles' reflex. * * *
Achilles Tatius
▪ Greek author flourished 2nd century AD, Alexandria       author of Leucippe and Cleitophon, one of the Greek prose romances (Hellenistic romance) that influenced the ...
Achilles tendon
Anat. the tendon joining the calf muscles to the heel bone. Also, Achilles' tendon. [1900-05] * * * ▪ anatomy also called  calcaneal tendon        strong tendon at ...
Achilles' heel
Achilles' heel n. (one's) vulnerable or susceptible spot * * *
A·chil·les' heel (ə-kĭlʹēz) n. A seemingly small but actually crucial weakness.   [From Achilles' being vulnerable only in the heel.] * * *
Achilles jerk n. A reflex bending of the foot resulting from the contraction of lower leg muscles. * * *
Achilles tendon n. The large tendon connecting the heel bone to the calf muscle of the leg. * * *
Achillini, Alessandro
▪ Italian philosopher and physician born Oct. 29, 1463, Bologna, Papal States [Italy] died Aug. 2, 1512, Bologna       Italian philosopher and physician, an advocate of ...
/euh kim"ay as'/, n. Douay Bible. Ahimaaz. * * *
/euh kim"euh lek'/, n. Douay Bible. Ahimelech. * * *
/euh kim"euh neez'/, n., pl. achimenes. any of several tropical American herbs of the genus Achimenes, cultivated for their showy, tubular flowers. [ < NL (1791), alter. of L ...
/ah'cheuh neez", -nees", ach'euh-/, n., pl. Achinese. Atjehnese. * * * One of the main ethnic groups on the island of Sumatra, Indon. In the 13th century the Achinese became ...
Achinese War
(1873–1904) Armed conflict between The Netherlands and the Muslim sultanate of Acheh in northern Sumatra. The Dutch considered the sultanate to be within their northern ...
See achy. * * *
—achingly, adv. /ay"king/, adj. 1. causing physical pain or distress: treatment for an aching back. 2. full of or precipitating nostalgia, grief, loneliness, etc. [1200-1250; ...
See aching. * * *
/euh chinsk"/; Russ. /ah"chyinsk/, n. a city in the S central Russian Federation in Asia. 117,000. * * * ▪ Russia also spelled  Ačinsk,         city, Krasnoyarsk ...
/ah'chee oh"tee, -tay/, n. annatto. Also, achiota /ah'chee oh"tah, -teuh/. [1790-1800; < MexSp < Nahuatl achiotl] * * *
a·chir·a (ə-chîrʹə) n. See edible canna.   [New Latin achīra: a-1 + Greek kheir, hand; See ghes-. * * *
/ay kuy"reuhl/, adj. Chem. not chiral. [A-6 + CHIRAL] * * *
/ay"kish/, n. the king of the Philistine city of Gath, who twice gave refuge to David. I Sam. 21:10-15. * * *
/euh kit"euh fel'/, n. Douay Bible. Ahithophel. * * *
/ach"keuhn/, n. a close-fitting, high-necked coat, slightly flared below the waist and reaching almost to the knee, worn by men in India. [1910-15; < Hindi ackan] * * *
/ay klam"i dayt', -dit/, adj. Zool. not chlamydate; having neither mantle nor pallium. [1875-80; A-6 + CHLAMYDATE] * * *
/ak'leuh mid"ee euhs/, adj. Bot. not chlamydeous; having neither calyx nor corolla. [1820-30; A-6 + CHLAMYDEOUS] * * *

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