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Слова на букву culi-dttp (2629)

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culicifuge
1. Driving away gnats and mosquitoes. 2. An agent that keeps mosquitoes from biting. [L. culex, gnat + fugo, to drive away]
Culicoides
A genus of minute biting gnats or midges, vectors of several nonpathogenic human filariae ( Mansonella, Dipetalonema), of Onchocerca in horses and cattle, and of several viral ...
Culiseta
A genus of mosquitoes (family Culicidae). They are vectors for a number of diseases of humans and of domestic and wild animals and birds. - C. inornata mosquito species that is ...
Cullen
Thomas S., U.S. gynecologist, 1868–1953. See C. sign.
culmen
The anterior prominent portion of the monticulus of the vermis of the cerebellum; vermal lobule rostral to the primary fissure; divided into an anterior part [TA] (lobule IV of ...
Culp
Ormond S., U.S. urologist, 1910–1977. See C. pyeloplasty.
cult
A system of beliefs and rituals based on dogma or religious teachings and characterized by devoted adherents who display a readiness to obey, an unrealistic idealization of the ...
cultivation
SYN: culture. [Mediev. L. cultivo, pp. -atus, fr. L. colo, pp. cultus, to till]
cultural diversity
The inevitable variety in customs, attitudes, practices, and behavior that exists among groups of individuals from different ethnic, racial, or national backgrounds who come into ...
Culture
A culture is the propagation of microorganisms in a growth media. Any body tissue or fluid can be evaluated in the laboratory by culture techniques in order to detect and ...
cum
With [L.]
cumarin
SYN: coumarin.
cumetharol
SYN: coumetarol.
cumethoxaethane
SYN: coumetarol.
Cummer
William E., Canadian dentist, 1879–1942. See C. classification, C. guideline.
cUMP
Abbreviation for cyclic uridine 3′,5′-monophosphate.
cumulative
Tending to accumulate or pile up, as with certain drugs that may have a c. effect.
cumulus
A collection or heap of cells. [L. a heap] - c. oöphorus a mass of epithelial granulosa cells surrounding the ovum in the ovarian follicle. SYN: ovigerus, proligerous disk, ...
cuneate
Wedge-shaped. [L. cuneus, wedge]
cuneiform
Wedge-shaped. See intermediate c. (bone), lateral c. (bone), medial c. (bone).
cuneocuboid
Relating to the lateral cuneiform and the cuboid bones.
cuneonavicular
Relating to the cuneiform and the navicular bones. SYN: cuneoscaphoid.
cuneoscaphoid
SYN: cuneonavicular.
cuneus
That region of the medial aspect of the occipital lobe of each cerebral hemisphere bounded by the parietooccipital fissure and the calcarine fissure. [L. wedge]
cuniculus
The burrow of the scabies mite in the epidermis. [L. a rabbit; an underground passage]
cunnilingus
Oral stimulation of the vulva or clitoris; a type of oral-genital sexual activity; contrasted with fellatio, which is the oral stimulation of the penis. [L. cunnus, pudendum, ...
Cunninghamella elegans
One of several species of fungi that can cause mucormycosis in humans.
cunnus
SYN: vulva. [L.]
cup
1. An excavated or hallowed structure, either anatomic or pathologic. SYN: poculum. 2. SYN: cupping glass. [A.S. cuppe] - Diogenes c. SYN: c. of palm. - dry c. a cupping ...
Cup, optic
The white, cup-like area in the center of the optic disc. The optic disk is the circular area at the back of the inside of the eye where the optic nerve connects to the retina.
cupola
SYN: cupula.
cupped
Hollowed; made cup-shaped.
cupping
1. Formation of a hollow, or cup-shaped excavation. 2. Application of a c. glass. SEE ALSO: cup.
cupric
Pertaining to copper, particularly to copper in the form of a doubly charged positive ion.
cupric acetate, cupric acetate normal
A stimulating local caustic to ulcers.
cupric arsenite
A poisonous green crystalline powder, obsolete as a medicinal agent; now used as an insecticide and pigment. SYN: copper arsenite, Scheele green.
cupric chloride
Has been used as an antiseptic in the treatment of water supplies, ponds, and pools. SYN: copper bichloride, copper chloride, copper dichloride.
cupric citrate
A salt of copper used as an astringent and antiseptic. SYN: copper citrate.
cupric sulfate
A blue salt highly poisonous to algae, it is a prompt and active emetic, and is used as an irritant, astringent, and fungicide. SYN: copper sulfate, copper sulphate.
cupriuresis
The urinary excretion of copper. [L. cuprum, copper, + G. ouresis, a urinating]
cupula
A cup-shaped or domelike structure. SYN: cupola. [L. dim. of cupa, a tub] - ampullary c. SYN: c. ampullaris. - c. ampullaris [TA] a gelatinous mass that overlies the hair cells ...
cupular
1. Relating to a cupula. 2. Dome-shaped. SYN: cupulate, cupuliform.
cupulate
SYN: cupular (2).
cupuliform
SYN: cupular (2).
cupulogram
A graphic representation of vestibular function relative to normal performance.
cupulolithiasis
SYN: benign paroxysmal positional vertigo.
curage
Curettage by means of the finger rather than the curet. [Fr. a cleansing]
Curare
A muscle relaxant used in anesthesia (and, in the past, in arrow poisons by South American Indians). Curare competes with acetylcholine, a chemical that carries information ...
curariform
Denoting a drug having an action like curare.
curarimimetic
Having a curarelike action.
curarine
The alkaloid principle of calabash curare.
curarization
Induction of muscular relaxation or paralysis by the administration of curare or related compounds that have the ability to block nerve impulse transmission at the myoneural ...
curative
1. That which heals or cures. 2. Tending to heal or cure.
curcumin
A yellow pigment from roots and pods of Curcuma longa; used in liver and bile ailments; found in curry powder; used as an indicator; it inhibits 5-lipoxygenase. SYN: tumeric ...
curd
The coagulum of milk.
cure
1. To heal; to make well. 2. A restoration to health. 3. A special method or course of treatment. See dental curing. [L. curo, to care for]
curet
See curette.
Curettage
The removal of growths or other material from the wall of a cavity or other surface, as with a curet. A curet, or curette, is a spoon-shaped instrument with a sharp edge. The ...
Curette
: A spoon-shaped instrument with a sharp edge. The word "curette" comes from the French and means a "scraper." The French verb "curer" is "to ...
curette, curet
Instrument in the form of a loop, ring, or scoop with sharpened edges attached to a rod-shaped handle, used for curettage. [Fr.] - Hartmann c. a c., cutting on the side, for the ...
curettement
SYN: curettage.
curie
A unit of measurement of radioactivity, 3.70 ×1010 disintegrations per second; formerly defined as the radioactivity of the amount of radon in equilibrium with 1 gm. of ...
Curie (Ci)
A unit of radioactivity. (Specifically, the quantity of any radioactive nuclide in which the number of disintegrations per second is 3.7 X 10 to the 10th). Named for Marie and ...
curing
1. The act of accomplishing a cure. 2. A process by which something is prepared for use, as by heating, aging, etc. - dental c. the process by which plastic materials become ...
curium
An element, atomic no. 96, atomic wt. 247.07, not occurring naturally on earth, but first formed artificially in 1944 by bombarding 239Pu with alpha particles; the most stable of ...
Curling
Thomas B., English surgeon, 1811–1888. See stress ulcer.
Currarino syndrome
A condition characterized by the combination of: {{}}Partial absence of the sacrum (the lowest portion of spine), Anorectal (anal and rectal) abnormalities, and An abnormal mass ...
current
A stream or flow of fluid, air, or electricity. [L. currens, pres. p. of curro, to run] - action c. an electrical c. induced in muscle fibers when they are effectively stimulated; ...
Curschmann
Heinrich, German physician, 1846–1910. See C. spirals, under spiral.
curse
An affliction thought to be invoked by a malevolent spirit. - Ondine c. idiopathic central alveolar hypoventilation in which involuntary control of respiration is depressed, but ...
Curse, Ondine's
Failure from birth of central nervous system control over breathing while asleep. There are usually no breathing problems while awake. The involuntary (autonomic) control of ...
Curtis
Arthur H., U.S. gynecologist, 1881–1955. See Fitz-Hugh and C. syndrome.
curvatura
SYN: curvature. [L.] - c. primaria columnae vertebralis [TA] SYN: primary curvature of vertebral column. - curvaturae secondariae columnae vertebralis [TA] SYN: secondary ...
curvature
A bending or flexure. See angulation. SYN: curvatura. [L. curvatura, fr. curvo, pp. -atus, to bend, curve] - angular c. a gibbous deformity, i.e., a sharp angulation of the ...
curve
1. A nonangular continuous bend or line. 2. A chart or graphic representation, by means of a continuous line connecting individual observations, of the course of a physiologic ...
Curvularia
A genus of dark-colored fungi that grow rapidly on culture media. Generally regarded as contaminants, two species, C. lunata and C. geniculata, are among the species capable of ...
Cushing
Harvey W., U.S. neurosurgeon, 1869–1939. See C. basophilism, C. disease, C. syndrome, C. syndrome medicamentosus, C. effect, C. phenomenon, C. response, C. pituitary ...
Cushing syndrome
The constellation of symptoms and signs caused by an excess of cortisol hormone. Cushing syndrome is an extremely complex hormonal condition that involves many areas of the ...
cushingoid
Resembling the signs and symptoms of Cushing disease or syndrome : moon facies, buffalo hump obesity, striations, adiposity, hypertension, diabetes, and osteoporosis, ...
cushion
In anatomy, any structure resembling a pad or c.. - anal cushions vascular prominences formed by clusters of normally sacculated veins of the superior rectal venous plexus, fed ...
Cusp
In reference to heart valves, one of the triangular segments of the valve which opens and closes with the flow of blood. In reference to teeth, a raised area of the biting ...
cuspad
In a direction toward the cusp of a tooth. [L. ad, to]
cuspal
Pertaining to a cusp.
cuspid
1. Having but one cusp. SYN: cuspidate. 2. SYN: canine tooth. [L. cuspis, point]
cuspidate
SYN: cuspid (1).
cuspis
SYN: cusp. [L. a point] - c. anterior valvae atrioventricularis dextrae [TA] SYN: anterior cusp of tricuspid valve. - c. anterior valvae atrioventricularis sinistrae [TA] SYN: ...
cusum
Acronym for cumulative sum of a series of measurements; used primarily in Great Britain.
Cut
An area of severed skin. Wash a cut or scrape it with soap and water, and keep it clean and dry. Putting alcohol, hydrogen peroxide, or iodine into a wound can delay healing, ...
cutaneomucosal
SYN: mucocutaneous.
cutaneous
Relating to the skin. [L. cutis, skin]
Cutaneous papilloma
A small tag of skin that may have a stalk (a peduncle). Cutaneous papillomas may appear on the skin almost anywhere although the favorite locales are the eyelids, neck, armpits ...
Cutaneous syndactyly
A condition in which fingers or toes are joined together, and the joining involves only the skin, not the bones. Cutaneous syndactyly is the opposite of bony syndactyly, in ...
cutch
SYN: catechu nigrum.
cutdown
Dissection of a vein or artery for insertion of a cannula or needle for the administration of intravenous fluids or medication or for measurement of pressure. SYN: venostomy.
Cuterebra
A genus of botflies with large blue or black bumble-bee-like adults, whose larvae most commonly infest rodents and lagomorphs (hares and rabbits); the larvae develop into large ...
cuticle
1. An outer thin layer, usually horny in nature. SYN: cuticula (1). 2. The layer, chitinous in some invertebrates, which occurs on the surface of epithelial cells. 3. SYN: ...
cuticula
1. [NA] SYN: cuticle (1). 2. SYN: epidermis. [L. cuticle] - c. 2 - c. dentis SYN: enamel cuticle. - c. pili a layer of overlapping shinglelike cells that invest the hair ...
cutin
A specially prepared, thin, animal membrane used as a protective covering for wounded surfaces. [L. cutis, skin]
cutis
SYN: skin. [L.] - c. anserina contraction of the arrectores pilorum produced by cold, fear, or other stimulus, causing the follicular orifices to become prominent. SYN: goose ...
Cutis anserina
Better known as goose bumps, a temporary local change in the skin when it becomes rougher due to erection of little muscles, as from cold, fear, or excitement. The chain of ...
cutization
The transition from mucous membrane to skin at the mucocutaneous margins.
cutpoint
Arbitrary value on an ordinal scale such as blood pressure, beyond which values are regarded as clinically abnormal.
Cuts
Severed skin. Washing a cut or scrape with soap and water and keeping it clean and dry is all that is required to care for most wounds. Putting alcohol hydrogen peroxide, and ...
cuvet, cuvette
A small container or cup in which solutions are placed for photometric analysis.
Cuvier
Baron Georges L.C.F.D. de la, French scientist, 1769–1832. See C. ducts, under duct, C. veins, under vein.
CV
Abbreviation for coefficient of variation; cardiovascular; closing volume.
CVA
Abbreviation for cerebrovascular accident.
CVA (cerebrovascular accident)
The sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture of an artery to the brain. A CVA is a stroke. ...
CVC
Commonly used abbreviation for a Central Venous Catheter, a catheter (tube) that is passed through a vein to end up in the thoracic (chest) portion of the vena cava (the large ...
CVP
Abbreviation for central venous pressure.
CX
Abbreviation for phosgene oxime.
CxT
Abbreviation for concentration × time. See AUC.
cyan-
See cyano-.
cyanalcohols
SYN: cyanohydrins.
cyanamide
An irritating and caustic water-soluble substance, H2NCN or HN=C=NH; often used in referring to calcium c..
cyanate
The radical —O—CΞN or ion (CNO)−.
cyanemia
Obsolete term for cyanosis. [ cyan- + G. haima, blood]
cyanide
1. The radical –CN or ion (CN)−. The ion is extremely poisonous, forming hydrocyanic acid in water, it has the odor of almond oil; inhibits respiratory proteins ...
cyanidenon
SYN: luteolin.
cyanidol
SYN: catechin.
cyanmethemoglobin
A relatively nontoxic compound of cyanide with methemoglobin, which is formed when methylene blue is administered in cases of cyanide poisoning. SYN: cyanide methemoglobin. ...
cyano-, cyan-
1. Combining form meaning blue. 2. Chemical prefix frequently used in naming compounds that contain the cyanide group, CN. [G. kyanos, a dark blue substance]
Cyanobacteria
A division of the kingdom Prokaryotae consisting of unicellular or filamentous bacteria that are either nonmotile or possess a gliding motility, reproduce by binary ...
cyanochroic, cyanochrous
SYN: cyanotic. [cyano- + G. chroia, color]
cyanocobalamin
A complex of cyanide and cobalamin, as in vitamin B12, in which a cyanide group has filled the sixth coordinate position of the cobalt atom. - radioactive c. ...
cyanogen
1. A compound of two cyano radicals, NC—CN. 2. Highly toxic compounds (general formula X—CN, where X is a halogen) that are used in chemical syntheses and as tissue ...
cyanogenic
Capable of producing hydrocyanic acid; said of plants such as sorghum, Johnson grass, arrowgrass, and wild cherry which may cause cyanide poisoning in herbivorous animals.
cyanohydrins
R—CHOH—CN; addition compounds of HCN and aldehydes. SYN: cyanalcohols.
cyanophil, cyanophile
A cell or element that is differentially colored blue by a staining procedure. [cyano- + G. philos, fond]
cyanophilous
Readily stainable with a blue dye.
Cyanophyceae
SYN: Cyanobacteria. [cyano- + G. phykos, seaweed]
cyanopia
SYN: cyanopsia.
cyanopsia
A condition in which all objects appear blue; may temporarily follow cataract extraction. SYN: blue vision, cyanopia. [cyano- + G. opsis, vision]
cyanosed
SYN: cyanotic.
Cyanosis
The bluish color of the skin and the mucous membranes (for example, of the lips) due to there being insufficient oxygen in the blood. The word "cyanosis" comes from the Greek ...
cyanotic
Relating to or marked by cyanosis. SYN: cyanochroic, cyanochrous, cyanosed.
cyanuria
The presence of blue urine. [cyano- + G. ouron, urine]
cyanuric acid
A cyclic product formed by heating urea; used industrially and as an herbicide.
Cyathostoma
A genus of gapeworms of poultry in the nematode family Syngamidae, so called because of the gaping habit of fowl infected by these worms in their upper respiratory tract. [G. ...
Cyathostomum
A genus of strongyle nematodes (family Cyasthostomidae, formerly part of the family Strongylidae); it includes many of the small strongyles of horses formerly placed in the ...
cybernetics
1. The comparative study of computers and the human nervous system, with intent to explain the functioning of the brain. 2. The science of control and communication in both ...
cybrid
A cell with cytoplasm from two different cells as a result of cell hybridization. [cell + hybrid]
cycl-
See cyclo-.
cyclamate
A salt or ester of cyclamic acid; the calcium and sodium are noncaloric artificial sweetening agents.
cyclamic acid
A sweetening agent, usually used as sodium or calcium cyclamate. SYN: cyclohexanesulfamic acid, cyclohexylsulfamic acid.
cyclamide
SYN: glycyclamide.
cyclandelate
An antispasmodic similar in action to papaverine; used for obliterative vascular diseases and vasospastic conditions.
cyclarthrodial
Relating to a cyclarthrosis.
cyclarthrosis
A joint capable of rotation. [cyclo- + G. arthrosis, articulation]
cyclase
Descriptive name applied to an enzyme that forms a cyclic compound; e.g., adenylate c..
cycle
1. A recurrent series of events. 2. A recurring period of time. 3. One successive compression and rarefaction of a wave, as of a sound wave. [G. kyklos, circle] - anovulatory ...
Cycle, cell
The sequence of events within the cell between mitotic (cell) divisions. The cell cycle is conventionally divided into phases: {{}}G0 (G zero, the G standing for gap) G1, (G ...
Cycle, menstrual
The menstrual cycle, "the period" of monthly changes of the endometrium (the lining of the uterus), ends with the shedding of part of the endometrium and menstruation (monthly ...
cyclectomy
Excision of a portion of the ciliary body. SYN: ciliectomy. [cyclo- + G. ektome, excision]
cyclencephaly, cyclencephalia
Condition in a malformed fetus characterized by poor development and a varying degree of fusion of the two cerebral hemispheres. SYN: cyclocephaly, cyclocephalia. [cyclo- + G. ...
cycles per second
The number of successive compressions and rarefactions per second of a sound wave. The preferred designation for this unit of frequency is hertz.
cyclic
1. Pertaining to, or characteristic of, a cycle; occurring periodically, denoting the course of the symptoms in certain diseases or disorders. 2. In chemistry, continuous, ...
cyclic AMP
SYN: adenosine 3′,5′-cyclic monophosphate.
cyclic GMP
SYN: cyclic guanosine 3′,5′-monophosphate.
Cyclic vomiting syndrome
A syndrome characterized by episodes, bouts, or cycles of severe nausea and vomiting that last for hours or even days and alternate with longer asymptomatic periods (with no ...
Cyclin D
A family of three closely related proteins termed cyclin D1, D2 and D3 that are expressed in an overlapping redundant fashion in all proliferating cell types and collectively ...
cyclitis
Inflammation of the ciliary body. [G. kyklos, circle (ciliary body), + -itis, inflammation] - Fuchs heterochromic c. SYN: Fuchs syndrome. - heterochromic c. a chronic ...
cyclizine hydrochloride
An H1 antihistamine agent useful in the prevention and relief of motion sickness and symptoms caused by vestibular disorders.
cyclizine lactate
An agent with the same use and action as the hydrochloride.
cyclo-, cycl-
1. Combining forms relating to a circle or cycle; or denoting an association with the ciliary body. 2. In chemistry, a combining form indicating a continuous molecule, without ...
cyclobenzaprine hydrochloride
A centrally acting skeletal muscle relaxant used to relieve acute muscular spasms.
cyclocephaly, cyclocephalia
SYN: cyclencephaly. [cyclo- + G. kephale, head]
cyclochoroiditis
Inflammation of the ciliary body and the choroid.
cyclocryotherapy
Transscleral freezing of the ciliary body in the treatment of glaucoma.
cyclocumarol
4-Hydroxycoumarin anticoagulant No. 63; a synthetic anticoagulant compound, related to bishydroxycoumarin.
cyclodestructive
Relating to a procedure designed to damage the ciliary body in order to diminish the production of aqueous fluid in patients with glaucoma. See cyclocryotherapy, cyclodiathermy, ...
cyclodialysis
Establishment of a communication between the anterior chamber and the suprachoroidal space in order to reduce intraocular pressure in glaucoma. [cyclo- + G. dialysis, ...
cyclodiathermy
Diathermy applied to the sclera adjacent to the ciliary body in the treatment of glaucoma.
cycloduction
Rotation of the eye around its visual axis. SYN: circumduction (2) [TA], cyclotorsion. [cyclo- + L. duco, pp. ductus, to draw]
cycloguanil pamoate
A long-acting antimalarial agent that prevents the growth or survival of the pre-erythrocytic and erythrocytic parasites.
cyclohexanesulfamic acid
SYN: cyclamic acid.
cycloheximide
An antibiotic obtained from certain strains of Streptomyces griseus; used in biochemical research to inhibit in vitro protein synthesis; also a fungicide and rat repellent.
cyclohexylsulfamic acid
SYN: cyclamic acid.
cycloid
Suggesting cyclothymia; a term applied to a person who tends to have periods of marked swings of mood, but within normal limits. [cyclo- + G. eidos, resembling]
cyclol
A cyclic dipeptide postulated as occurring in proteins; it does occur in some of the ergot alkaloids.
cyclonamine
SYN: ethamsylate.
cyclooxygenase
SYN: prostaglandin endoperoxide synthase.
Cyclooxygenase-2 (Cox-2) inhibitor
A class of drugs that selectively blocks a specific enzyme called Cox-2. Blocking this enzyme impedes the production of the chemical messengers that cause the pain and swelling of ...
cyclopea
SYN: cyclopia.
cyclopean
SYN: cyclopian.
cyclopentamine hydrochloride
A sympathomimetic amine, similar in action to ephedrine.
cyclopentane
A closed ring hydrocarbon containing five carbon atoms, isomeric with pentene.
cyclopenta[a]phenanthrene
Phenanthrene, to the a side of which a three-carbon fragment is fused; as the perhydro (saturated) derivative, it is the basic structure of the steroids.
cyclopenthiazide
A benzothiadiazide diuretic.
cyclopentolate hydrochloride
An anticholinergic, spasmolytic drug, used in refraction determinations; causes cycloplegia and mydriasis; an atropinelike agent with brief duration of action.
cyclopeptide
A polypeptide lacking terminal —NH2 and —COOH groups by virtue of their combination to form another peptide link, forming a ring.
cyclophenazine hydrochloride
A tranquilizing drug.
cyclophorases
The group of enzymes in mitochondria that catalyze the complete oxidation of pyruvic acid to carbon dioxide and water; essentially, those enzymes and coenzymes involved in the ...
cyclophoria
Abnormal tendency for each eye to rotate around its anteroposterior axis, the rotation being prevented by visual fusional impulses. [cyclo- + G. phora, movement]
cyclophosphamide
An alkylating agent with antitumor activity and uses similar to those of its parent compound, nitrogen mustard (mechlorethamine hydrochloride); also a suppressor of B-cell ...
cyclophotocoagulation
Photocoagulation of the ciliary processes to reduce the secretion of aqueous humor in glaucoma. [cyclo- + photocoagulation]
Cyclophyllidae
An order of tapeworms that includes most of the common parasites of humans and domestic animals. [cyclo- + G. phyllon, leaf]
Cyclopia
A congenital abnormality (birth defect) in which there is only one eye. That eye is centrally placed in the area normally occupied by the root of the nose. There is a missing nose ...
cyclopian
Denoting or relating to cyclopia. SYN: cyclopean.
cycloplegia
Loss of power in the ciliary muscle of the eye; may be by denervation or by pharmacologic action. [cyclo- + G. plege, stroke]
cycloplegic
1. Relating to cycloplegia. 2. A drug that paralyzes the ciliary muscle and thus the power of accommodation.
cyclopropane
An explosive gas of characteristic odor; in the past, widely used for producing general anesthesia. SYN: trimethylene.
Cyclops
A common freshwater crustacean. Some species of Cyclops serve as hosts for parasites such as the guinea worm, the cause of dracunculiasis (guinea worm disease). The Cyclops were ...
cycloserine
An antibiotic produced by strains of Streptomyces orchidaceus or S. garyphalus with a wide spectrum of antibacterial activity. SYN: orientomycin.
cyclosis
The movement of the protoplasm and contained plastids within the protozoan cell. [G., fr. kykloo, to move around]
Cyclospora
A Cryptosporidium-like genus of coccidian parasites reported from millipedes, reptiles, insectivores, and a rodent species. C. is characterized by acid-fast oocysts with two ...
cyclosporin A
SYN: cyclosporine.
cyclosporine
A cyclic oligopeptide immunosuppressant produced by the fungus Tolypocladium inflatum Gams; used to inhibit organ transplant rejection. SYN: cyclosporin A.
cyclothiazide
A diuretic and antihypertensive.
Cyclothymia
A form of bipolar disorder in which the mood swings are less severe. See also bipolar disease. * * * A mental disorder characterized by marked swings of mood from depression ...
cyclothymiac, cyclothymic
Relating to cyclothymia.
cyclotomy
Operation of cutting the ciliary muscle. [cyclo- + G. tome, incision]
cyclotorsion
SYN: cycloduction.
cyclotron
An accelerator that produces high-speed ions ( e.g., protons and deuterons) under the influence of an alternating magnetic field, for bombardment and disruption of atomic nuclei. ...
cyclotropia
A disparity of ocular position in which one eye is rotated around its visual axis, with respect to the other eye. [cyclo- + G. trope, a turn, turning]
cyclozoonosis
A zoonosis that requires more than one vertebrate host (but no invertebrate) for completion of the life cycle; e.g., various taenioid cestodes such as Taenia saginata and T. ...
Cyd
Symbol for cytidine.
cyesis
Obsolete term for pregnancy. [G. kyesis]
cyl.
Abbreviation for cylinder, or cylindrical lens.
cylinder
1. A cylindrical lens. 2. A cylindrical or rodlike renal cast. 3. A cylindrical metal container for gases stored under high pressure. [G. kylindros, a roll] - Bence Jones ...
cylindraxis
Historical precursor of the term axon, based on an interpretation of the myelinated nerve fiber as a cylinder of which the axon formed the axis.
cylindrical
Shaped like a cylinder; referring to a cylinder.
cylindroadenoma
SYN: cylindroma.
cylindroid
SYN: false cast. [G. kylindrodes, fr. kylindros, roll, cylinder, + eidos, appearance]
cylindroma
A histologic type of epithelial neoplasm, frequently malignant, characterized by islands of neoplastic cells embedded in a hyalinized stroma which may represent a thickened ...
cylindruria
The presence of renal cylinders or casts in the urine.
cyllosoma
One-sided congenital defect of the lower abdominal wall ( eventration) with defective development of the corresponding lower limb. [G. kyllos, deformed, esp. clubfooted or ...
cymarin
K-Strophanthin-α, a glycoside of cymarose present in the seeds of Strophanthus kombé; the aglycone is strophanthin; a cardiotonic.
cymba conchae
The upper, smaller part of the external ear lying above the crus helicis. [G. kymbe, the hollow of a vessel, a cup, bowl, a boat]
cymbocephalic, cymbocephalous
Relating to cymbocephaly.
cymbocephaly
SYN: scaphocephaly. [G. kymbe, the hollow of a vessel, a boat-shaped structure, + kephale, head]
cynanthropy
A delusion in which one barks and growls, imagining oneself to be a dog. [G. kyon, dog, + anthropos, man]
cynocephaly
Craniostenosis in which the skull slopes back from the orbits, producing a resemblance to the head of a dog. [G. kyon, dog, + kephale, head]
cynodont
1. A canine tooth. 2. A tooth having one cusp or point. [G. kyon, dog, + odous (odont-), tooth]
Cynophobia
An abnormal and persistent fear of dogs. Sufferers from cynophobia experience anxiety even though they realize that most dogs pose no threat. To avoid dogs, they may barricade ...
Cyon
Elie de, Russian physiologist, 1843–1912. See C. nerve.
CYP
Abbreviation for cytochrome P450 enzymes; usually followed by an arabic numeral, a letter, and another arabic numeral ( e.g., C. 2D6). These enzymes are found in and on the ...
cypridophobia
Morbid fear of venereal disease or of sexual intercourse. [G. Kypris, Aphrodite, + phobos, fear]
cyproheptadine hydrochloride
A potent antagonist of histamine and serotonin, with H1 antihistaminic and antipruritic actions.
cyproterone acetate
A synthetic steroid capable of inhibiting the biological effects exerted by endogenous or exogenous androgenic hormones; an antiandrogen.
Cys
Symbol for cysteine (half-cystine) or its mono- or diradical.
Cyst
: A closed sac or capsule, usually filled with fluid or semisolid material. * * * 1. A bladder. 2. An abnormal sac containing gas, fluid, or a semisolid material, with a ...
Cyst meibomian
A cyst of the little glands in the tarsus (part of the framework) of the eyelids that make a lubricant which they discharge through their tiny openings in the edges of the ...
Cyst of the ovary, follicular
A fluid-filled sac in the ovary, the most common type of ovarian cyst. It results from the growth of a follicle. A follicle is the fluid-filled cyst that contains an egg. In some ...
Cyst thyroglossal
A thyroglossal cyst is a fluid-filled sac present at birth and located in the midline of the neck. A thyroglossal cyst is a result of incomplete closure of a segment of a ...
Cyst, Baker
A swelling in the space behind the knee (the popliteal space) composed of a membrane-lined sac filled with synovial fluid that has escaped from the joint. Named after the ...
Cyst, meibomian
Also called a chalazion or a tarsal cyst, an inflammation of the oil gland of the eyelid.
Cyst, ovarian
A fluid-filled sac in the ovary. The most common type of ovarian cyst is called a follicular cyst. It results from the growth of a follicle. A follicle is the fluid-filled cyst ...
Cyst, pilonidal
A special kind of abscess that occurs in the cleft between the buttocks. Forms frequently in adolescence after long trips that involve sitting.
Cyst, sebaceous
A sebaceous cyst is a rounded swollen area of the skin formed by an abnormal sac of retained excretion (sebum) from the sebaceous follicles.
Cyst, synovial, of the popliteal space
A swelling in the space behind the knee (the popliteal space). The swelling is composed of a membrane-lined sac filled with synovial fluid that has escaped from the joint. ...
Cyst, tarsal
Also called a chalazion or a Meibomian cyst, an inflammation of the oil gland of the eyelid.
Cyst, thyrolingual
A thyrolingual cyst is a fluid-filled sac that is present at birth and located in the midline of the neck. A thyrolingual cyst is a result of incomplete closure of a segment of ...
cyst-
See cysto-.
cystacanth
The fully developed larva of Acanthocephala, infective to the final host and with an inverted fully formed proboscis characteristic of the adult worm. [ cyst- + G. akantha, ...
cystadenocarcinoma
A malignant neoplasm derived from glandular epithelium, in which cystic accumulations of retained secretions are formed; the neoplastic cells manifest varying degrees of ...
cystadenoma
A histologically benign neoplasm derived from glandular epithelium, in which cystic accumulations of retained secretions are formed; in some instances, considerable portions of ...
cystalgia
Pain in a bladder, especially the urinary bladder. [ cyst- + G. algos, pain]
cystamine
Decarboxycystine; forms when cystine is distilled. The disulfide of cysteamine.
cystathionase
SYN: cystathionine γ-lyase.
cystathionine
The l-isomer is an intermediate in the conversion of l-methionine to l-cysteine; cleaved by cystathionases.
cystathionine β-lyase
An enzyme catalyzing the hydrolysis of l-cystathionine to pyruvate, l-homocysteine, and NH3. SEE ALSO: cystathionine γ-lyase. SYN: β-cystathionase, cystine lyase.
cystathionine β-synthase
An enzyme catalyzing the reversible hydrolysis of l-cystathionine to l-serine and l-homocysteine. A step in cysteine biosynthesis and in methionine catabolism. A deficiency of ...
cystathionine γ-lyase
A liver enzyme, requiring pyridoxal phosphate as coenzyme, that catalyzes the hydrolysis of l-cystathionine to l-cysteine and 2-ketobutyrate, releasing NH3; also catalyzes ...
cystathionine γ-synthase
SYN: O-succinylhomoserine (thiol)- lyase.

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