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fit
1. An attack of an acute disease or the sudden appearance of some symptom, such as coughing. 2. A convulsion. 3. (plural) epilepsy 4. In dentistry, the adaptation of any dental ...
FITC
Abbreviation for fluorescein isothiocyanate.
fitness
1. Well-being. 2. Suitability. 3. In population genetics, a measure of the relative survival and reproductive success of a given individual or phenotype, or of a population ...
Fitz-Hugh
T., Jr., U.S. physician, 1894–1963. See Fitz-Hugh and Curtis syndrome.
Five-day fever
Also called trench fever, this is a disease borne by body lice that was first recognized in the trenches of World War I, when it is estimated to have affected more than a million ...
fixation
1. The condition of being firmly attached or set. 2. In histology, the rapid killing of tissue elements and their preservation and hardening to retain as nearly as possible the ...
Fixation, external
A procedure that stabilizes and joins the ends of fractured (broken) bones by a splint or cast. External fixation is as opposed to internal fixation in which the ends of the ...
Fixation, internal
A surgical procedure that stabilizes and joins the ends of fractured (broken) bones by mechanical devices such as metal plates, pins, rods, wires or screws. Internal fixation is ...
Fixative
A medium such as a solution or spray that preserves specimens of tissues or cells. Most biopsies and specimens removed at surgery are fixed in a solution such as formalin ...
fixator
A device providing rigid immobilization through external skeletal fixation by means of rods (f.'s) attached to pins which are placed in or through the bone.
fixing
SYN: fixation (2).
flaccid
Relaxed, flabby, or without tone. [L. flaccidus]
flaccidity
The condition or state of being flaccid.
Flack
Martin W., British physiologist, 1882–1931. See F. node, Keith and F. node.
flagella
Plural of flagellum.
flagellar
Relating to a flagellum or to the extremity of a protozoan.
Flagellata
Former name for Mastigophora.
flagellate
1. Possessing one or more flagella. 2. Common name for a member of the class Mastigophora. - collared f. SYN: choanomastigote.
flagellated
Possessing one or more flagella.
flagellation
1. Whipping either one's self or another as a means of arousing or heightening sexual feeling. 2. The pattern of formation of flagella. [L. flagellatus, fr. flagello, to whip or ...
flagellin
Any member of a class of proteins containing the amino acid, ε-N-methyllysine; this class represents the main protein component of the flagella of bacteria.
flagellosis
Infection with flagellated protozoa in the intestinal or genital tract, e.g., trichomoniasis.
flagellum
A whiplike locomotory organelle of constant structural arrangement consisting of nine double peripheral microtubules and two single central microtubules; it arises from a deeply ...
Flail chest
When enough ribs are broken (usually from a crush injury) to compromise the rigidity of the chest wall. On inspiration, the chest wall moves inward instead of outward and the ...
flammable
The property of burning readily and quickly. SYN: inflammable. [L. flamma, flame]
flange
That part of the denture base which extends from the cervical ends of the teeth to the border of the denture. - buccal f. the portion of the f. of a denture that occupies the ...
flank
The area of the abdomen on each side of the umbilical region between transpyloric plane and intertubercular or interspinous plane. SYN: latus [TA], lateral abdominal region, ...
flap
1. Tissue for transplantation, vascularized by a pedicle; f.. SEE ALSO: local f., distant f.. 2. An uncontrolled movement, as of the hands. See asterixis. [M.E. flappe] - ...
flare
1. A gradual tapering or spreading outward. 2. A diffuse redness of the skin extending beyond the local reaction to the application of an irritant; it is due to dilation of the ...
flash
1. A sudden and brief burst of light or heat. 2. Excess material extruded between the sections of a flask in the process of molding denture bases or other dental ...
flashback
An involuntary recurrence of some aspect of a hallucinatory experience or perceptual distortion occurring some time after ingestion of the hallucinogen that produced the ...
flask
A small receptacle, usually of glass, used for holding liquids, powder, or gases. [M.E. keg, fr. Fr. flasque, fr. Germanic] - casting f. SYN: refractory f.. - crown f. SYN: ...
flasking
The process of investing the cast and a wax denture in a flask preparatory to molding the denture-base material into the form of the denture.
Flat feet
All babies have flat feet because their arches are not yet built up (and their feet tend to be plump). This condition may persist into adulthood, or an arch may form as the child ...
Flatau
Edward, Polish neurologist, 1869–1932. See F. law.
flatfoot
SYN: pes planus.
Flatulence
Excess gas in the intestinal tract. But what is excess flatulence is difficult to define without a yardstick to measure the "normal" frequency of gas passages. ...
flatulent
Relating to or suffering from flatulence.
Flatus
Gas in the intestinal tract or passed through the anus. The intestinal gases are hydrogen, nitrogen, carbon dioxide, and methane, all of which are odorless. The unpleasant smell ...
flatworm
A member of the phylum Platyhelminthes, including the parasitic tapeworms and flukes.
flavedo
Yellowness or sallowness of the skin. [L. flavus, yellow]
flavianic acid
A naphthol derivative dye, useful in the precipitation (and subsequent determination) of arginine and other basic substances.
flavin, flavine
1. SYN: riboflavin. 2. A yellow acridine dye, preparations of which are used as antiseptics. [L. flavus, yellow] - f. adenine dinucleotide (FAD) a condensation product of ...
Flaviviridae
A family of viruses that cause hemorrhagic fever and are transmitted by mosquitos and ticks. Flaviviruses have single-stranded RNA as their genetic material. The virus of yellow ...
Flavivirus
A family of viruses that cause hemorrhagic fever and are transmitted by mosquitos and ticks. Flaviviruses have single-stranded RNA as their genetic material. The virus of yellow ...
Flavobacterium
A genus of aerobic to facultatively anaerobic, nonsporeforming, motile and nonmotile bacteria (family Achromobacteraceae) containing Gram-negative rods; motile cells are ...
flavoenzyme
Any enzyme that possesses a flavin nucleotide as coenzyme; e.g., xanthine oxidase, succinate dehydrogenase. SYN: yellow enzyme.
flavokinase
SYN: riboflavin kinase.
flavone
1. A plant pigment that is the basis of the flavonoids; it is a potent inhibitor of prostaglandin biosynthesis. 2. One of a class of compounds based on f. (1).
flavonoids
1. Substances of plant origin containing flavone in various combinations (anthoxanthins, apigenins, flavones, quercitins, etc.) and with varying biologic activities. 2. ...
flavonol
1. Reduced flavone. 2. flavone (1) hydroxylated at position 3; a member of a class of vascular pigments. 3. Any hydroxylated flavone.
flavoprotein
A compound protein possessing a flavin as prosthetic group. Cf.:flavoenzyme.
Flavoproteins
Flavoproteins are yellow proteins that serve as enzymes critical to the ability of cells in the body to respire, to breath. (The "flavo-" is borrowed from the Latin " flavus", ...
flavor
1. The quality (influenced by odor) affecting the taste of any substance. 2. A therapeutically inert substance added to a prescription to give an agreeable taste to the mixture. ...
flavoxate hydrochloride
A smooth muscle relaxant for the urinary tract.
flavus
Latin for yellow. [L.]
flaxseed
SYN: linseed. - f. oil SYN: linseed oil.
flea
An insect of the order Siphonaptera, marked by lateral compression, sucking mouthparts, extraordinary jumping powers, and ectoparasitic adult life in the hair and feathers of ...
flecainide acetate
A member of the membrane-stabilizing group of antiarrhythmics, with local anesthetic activity, used in the treatment of refractory ventricular arrhythmias.
Flechsig
Paul E., German neurologist, 1847–1929. See F. areas, under area, F. ground bundles, under bundle, F. fasciculi, under fasciculus, F. tract, oval area of F., semilunar ...
Flegel
H., 20th century German dermatologist. See F. disease.
Fleisch
Alfred, Swiss physician and physiologist, 1892–1973. See F. pneumotachograph.
Fleischer
Bruno, German ophthalmologist, 1874–1965. See F. ring, F. vortex, Kayser-F. ring, F.- Strümpell ring.
Fleischmann
Friedrich Ludwig, 19th century German anatomist. See sublingual bursa.
Fleischner
Felix, Austrian-American radiologist, 1893–1969. See F. lines, under line.
Fleitmann
Theodore, 19th century German chemist. See F. test.
Fleming
Sir Alexander, Scottish bacteriologist, 1881–1955, co-winner of the 1945 Nobel prize for the discovery of penicillin.
Flemming
Walther, German anatomist, 1843–1905. See intermediate body of F., germinal center of F., F. fixative, F. triple stain.
Flesch
Rudolf F., Austrian educator, *1911. See F. formula.
flesh
1. The meat of animals used for food. 2. SYN: muscular tissue. [A.S. flaesc] - goose f. SYN: cutis anserina. - proud f. historic term for exuberant granulations in the ...
Flesh-eating bacteria
A popular media term for a type of strep bacteria (group A streptococcus) which rapidly destroys tissue and left untreated causes death. Surgical excision of dead and infected ...
fleshflies
Members of the order Diptera, whose larvae (maggots) develop in putrefying or living tissues. Maggots of the latter group produce myiasis; these include screw-worms (both ...
flex
To bend; to move a joint in such a direction as to approximate the two parts which it connects. [L. flecto, pp. flexus, to bend]
flexibilitas cerea
The rigidity of catalepsy which may be overcome by slight external force, but which returns at once, holding the limb firmly in the new position. [L. waxy flexibility]
fleximeter
SYN: goniometer (3).
Flexion
The process of bending or the state of being bent. Flexion of the fingers results in a clenched fist. * * * 1. The act of flexing or bending, e.g., bending of a joint so as to ...
Flexner
Simon, U.S. pathologist, 1863–1946. See F. bacillus.
Flexner Report
"Medical Education in the United States and Canada", quite possibly the most important written document in the history of American and Canadian medical education. The report is ...
flexor
A muscle the action of which is to flex a joint.
flexura
SYN: flexure. [L. a bending] - f. anorectalis [TA] SYN: anorectal flexure. - f. colica splenica left colic flexure. - f. coli dextra [TA] SYN: right colic flexure. - f. coli ...
flexural
Relating to a flexure.
flexure
A bend, as in an organ or structure. SYN: flexura [TA]. [L. flexura] - anorectal f. [TA] the anteroposterior curve or angle, with convesity directed anteriorly, of the ...
flicker
The visual sensation caused by stimulation of the retina by a series of intermittent light flashes occurring at a certain rate. SEE ALSO: f. fusion, critical f. fusion frequency.
flicks
Rapid, involuntary fixation movements of the eye of 5–10 minutes of arc. SYN: flick movements.
Flieringa
Henri J., Dutch ophthalmologist, *1891. See F. ring.
flight into disease
Gain through falling ill or assuming the sick role. See primary gain, secondary gain.
flight into health
In dynamic psychotherapy, the early but often only temporary disappearance of the symptoms that ostensibly brought the patient into therapy; a defense against the anxiety ...
Flint
Austin, Jr., U.S. physiologist, 1836–1915. See F. arcade. Austin, U.S. physician, 1812–1886. See Austin F. murmur, F. murmur, Austin F. phenomenon.
flip
A burn occurring on one side only of the entrance site in a gunshot wound of the soft parts.
flitter
SYN: impure flutter.
floater
An object in the field of vision that originates in the vitreous body. SEE ALSO: muscae volitantes.
floating
1. Free or unattached. 2. Unduly movable; out of the normal position; denoting an occasional abnormal condition of certain organs, such as the kidneys, liver, spleen, etc.
Floating rib
One of the last two ribs. A rib is said to be " floating" if it does not attach to the sternum (the breast bone) or to another rib. There are usually 12 pairs of ribs in all. Each ...
floc
A colloquial term for the product of a flocculation, i.e., the separation of the disperse phase of a colloidal suspension into discrete, usually visible particles, as in ...
floccillation
An aimless plucking at the bedclothes, as if one were picking off threads or tufts of cotton. [Mod. L. flocculus]
floccose
In bacteriology, applied to a growth of short, curving filaments or chains closely but irregularly disposed. [L. floccus, a flock of wool]
flocculable
Capable of undergoing flocculation.
floccular
Relating to a flocculus of any sort; specifically to the flocculus of the cerebellum.
flocculate
To become flocculent.
flocculation
Precipitation from solution in the form of fleecy masses; the process of becoming flocculent. SYN: flocculence.
floccule
SYN: flocculus.
flocculence
SYN: flocculation.
flocculent
1. Resembling tufts of cotton or wool; denoting a fluid, such as the urine, containing numerous shreds or fluffy particles of gray-white or white mucus or other material. 2. In ...
flocculonodular
See f. lobe.
flocculus
1. A tuft or shred of cotton or wool or anything resembling it. 2. [TA] A small lobe of the cerebellum at the posterior border of the middle cerebellar peduncle anterior to ...
Flocks
Milton, U.S. ophthalmologist, *1914. See Harrington-F. test.
Flood
Valentine, Irish anatomist and surgeon, 1800–1847. See F. ligament.
flood
1. To bleed profusely from the uterus, as after childbirth or in cases of menorrhagia. 2. Colloquialism for a profuse menstrual discharge. [A.S. flod]
Flood supplies kit
You and your family can cope best by preparing for disaster before it strikes. One way to prepare is by assembling a Disaster Supplies Kit. Once disaster hits, you won't have time ...
flooding
1. Bleeding profusely from the uterus, especially after childbirth or in severe cases of menorrhagia. 2. Profuse uterine hemorrhage. 3. A type of behavior therapy; a ...
floor
The lower inner surface of an open space or hollow organ. - f. of orbit [TA] the f. of the orbit; the shortest of the four walls of the orbit, sloping upward from the orbital ...
Floppy baby syndrome
A general medical reference to an abnormal condition of newborns and infants manifested by inadequate tone of the muscles. It can be due to a multitude of different neurologic and ...
Flora
The population of microbes inhabiting the outside or inside surfaces of people (or other animals). Also, the population of plants including flowers, usually in a particular area. ...
florantyrone
An agent which increases the volume of bile without increasing the quantity of bile solids or stimulating evacuation of the gallbladder.
Florence
Albert, French physician, 1851–1927. See F. crystals, under crystal.
Florence flask
See under flask.
Florey
Sir Howard W., Australian-British pathologist and Nobel laureate, 1898–1968. See F. unit.
florid
1. Of a bright red color; denoting certain cutaneous lesions. 2. Fully developed. [L. floridus, flowery]
Florschütz
Georg, German physician, *1859. See F. formula.
floss
1. SYN: dental f.. 2. To use dental f. in oral hygiene. - dental f. an untwisted thread made from fine, short, silk or synthetic fibers, frequently waxed; used for cleansing ...
flotation
A process for separating solids by their tendency to float upon or sink into a liquid.
Flourens
Marie Jean Pierre, French physiologist, 1794–1867. See F. theory.
flow
1. To bleed from the uterus less profusely than in flooding. 2. The menstrual discharge. 3. Movement of a liquid or gas; specifically, the volume of liquid or gas passing a ...
Flow cytometry
Analysis of biological material by detection of the light-absorbing or fluorescing properties of cells or subcellular fractions such as chromosomes passing in a narrow stream ...
Flow karyotyping
Use of flow cytometry to analyze and/or separate chromosomes on the basis of their DNA content.
Flower
Sir William H., English surgeon and anatomist, 1831–1899. See F. bone, F. dental index.
flower basket of Bochdalek
Part of the choroid plexus of the fourth ventricle protruding through the foramen of Luschka and resting on the dorsal surface of the glossopharyngeal nerve.
flowers
A mineral substance in a powdery state after sublimation. - f. of antimony SYN: antimony trioxide. - f. of benzoin SYN: benzoic acid. - f. of sulfur SYN: sublimed ...
flowmeter
A device for measuring velocity or volume of flow of liquids or gases. - electromagnetic f. a f. in which a magnetic field is applied to a blood vessel to measure flow in terms ...
floxacillin
A penicillin antibiotic resistant to β-lactamase (penicillinase).
floxuridine
The deoxynucleoside of fluorouracil; an antineoplastic agent. Fluorouracil is metabolized to f. and this, in turn, to 5-fluoro-2′-deoxyuridine 5′-monophosphate. The latter ...
Flu
Short for influenza. The flu is caused by viruses that infect the respiratory tract which are divided into three types, designated A, B, and C. Most people who get the flu ...
Flu shot
The flu (influenza) vaccine is recommended annually (each year) for persons at high risk for serious complications from influenza virus infection, including: Everyone age 65 or ...
Flu vaccine
The flu (influenza) vaccine is recommended for persons at high risk for serious complications from influenza virus infection, including: Everyone age 65 or more; People with ...
Flu, stomach
So-called " stomach flu" actually has nothing to do with the influenza (flu) virus. This term is sometimes used to describe gastrointestinal illnesses caused by other ...
fluanisone
An antianxiety agent.
flucrylate
A surgical tissue adhesive.
fluctuance
SYN: fluctuation (2).
fluctuate
1. To move in waves. 2. To vary, to change from time to time, as in referring to any quantity or quality, e.g., height of blood pressure, concentration of substance in urine or ...
Fluctuating rib
One of the last two ribs. A rib is said to be "fluctuating" if it does not attach to the sternum (the breast bone) or to another rib. There are usually 12 pairs of ribs in all. ...
fluctuation
1. The act of fluctuating. 2. A wavelike motion felt on palpating a cavity with nonrigid walls, especially one containing fluid. SYN: fluctuance.
flucytosine
An antifungal drug.
fludrocortisone acetate
A potent mineralocorticoid. SYN: 9α-fluorocortisol, 9α-fluorohydrocortisone acetate.
fluence
A measure of the quantity of x-radiation in a beam in diagnostic radiology, either particle f., the number of photons passing an aperture of unit cross-sectional area, or ...
fluency
The smooth flow of speech sounds in connected discourse, without interruptions or repetitions. [L. fluentia,a flowing, fr. fluo, to flow]
fluent
Relating to fluency.
flufenamic acid
An anti-inflammatory agent; resembles mefenamic acid.
fluid
1. A nonsolid substance, such as a liquid or gas, that tends to flow or conform to the shape of the container. 2. Consisting of particles or distinct entities that can readily ...
Fluid, cerebrospinal (CSF)
A watery fluid, continuously produced and absorbed, which flows in the ventricles (cavities) within the brain and around the surface of the brain and spinal cord. The CSF is ...
fluidextract
Pharmacopeial liquid preparation of vegetable drugs, made by percolation, containing alcohol as a solvent or as a preservative, or both, and so made that each milliliter ...
fluidglycerates
Pharmaceutical preparations, formerly official in the NF, containing approximately 50% by volume of glycerin but no alcohol, and of the same drug strength as fluidextracts.
fluidism
SYN: humoral doctrine.
fluidity
The reciprocal of viscosity; unit : rhe = poise−1.
fluidounce
A measure of capacity : 8 fluidrams. The imperial f. is a measure containing 1 avoirdupois ounce, 437.5 grains, of distilled water at 15.6°C, and equals 28.4 ml; the U.S. f. is ...
fluidrachm, fluidram
A measure of capacity : 18 of a fluidounce; a teaspoonful. The imperial f. contains 54.8 grains of distilled water, and equals 3.55 ml; the U.S. f. contains 57.1 grains of ...
fluke
Common name for members of the class Trematoda (phylum Platyhelminthes). All flukes of mammals ( subclass Digenea) are internal parasites in the adult stage and are ...
flumazenil
A benzodiazepine with antagonist properties at the benzodiazepine recognition site of the benzodiazepine-GABA-chloride channel complex. Used as a treatment for overdose with ...
flumen
A flowing, or stream. SYN: stream. [L.] - flumina pilorum SYN: hair streams, under stream.
flumethasone
The 21-pivalate salt and acetate are also available.
flumethiazide
An orally effective diuretic agent, related chemically to chlorothiazide and with similar pharmacologic actions; it inhibits carbonic anhydrase.
flumina
Plural of flumen.
flunarizine
A calcium-blocking agent with anticonvulsant properties.
flunisolide
An anti-inflammatory corticosteroid used intranasally or by inhalation in the treatment of allergies and asthma.
flunitrazepam
A benzodiazepine compound with sedative and hypnotic properties.F., said to be the most widely prescribed sedative and hypnotic in Europe although it is not licensed for sale ...
fluo-
1. Combining form denoting flow. 2. Prefix often used to denote fluorine (used in the generic name s of drugs). SEE ALSO: fluor-. [L. fluo, pp. fluxus, to flow]
fluocinolone acetonide
A fluorinated corticosteroid for topical use in the treatment of selected dermatoses.
fluocinonide
An anti-inflammatory corticosteroid used in topical preparations.
fluocortolone
A glucocorticoid. - f. caproate ester of f. used topically in the treatment of skin diseases. SYN: f. hexanoate. - f. hexanoate SYN: f. caproate. - f. pivalate an ester of ...
fluorapatite
A naturally occurring fluorophosphate of calcium.
fluorescamine
A nonfluorescent reagent that reacts with primary amines to form fluorescent compounds.
fluoresce
To produce or exhibit fluorescence.
fluorescein
An orange-red crystalline powder that yields a bright green fluorescence in solution, and is reduced to fluorescin; a nontoxic, water-soluble indicator used diagnostically to ...
Fluorescein angiography
A test to examine blood vessels in the retina, choroid, and iris of the eye. A special dye is injected into a vein in the arm and pictures are taken as the dye passes through the ...
fluorescein isothiocyanate
A fluorochrome dye frequently coupled to antibodies that are used to locate and identify specific antigens.
fluorescence
Emission of a longer wavelength radiation by a substance as a consequence of absorption of energy from a shorter wavelength radiation, continuing only as long as the stimulus is ...
fluorescence-activated cell sorter
A machine that can separate and analyze cells, such as lymphocytes, which are labeled with fluorochrome-conjugated antibody, by their fluorescence and light scattering patterns.
fluorescent
Possessing the quality of fluorescence.
Fluorescent in situ hybridization
An important molecular cytogenetic method for identifying chromosomes and parts of chromosomes, deciphering chromosome rearrangements, and locating genes on chromosomes. " ...
Fluorescent microscope
A microscope equipped to examine material that fluoresces under ultraviolet (UV) light.
fluorescin
Reduced fluorescein, with similar uses as fluorescein.
fluoridation
Addition of fluorides to a community water supply, usually about 1 ppm, to reduce incidence of dental decay.
fluoride
1. A compound of fluorine with a metal, a nonmetal, or an organic radical. 2. The anion of fluorine; inhibits enolase; found in bone and tooth apatite; f. has a cariostatic ...
fluoride number
The percent inhibition of pseudocholinesterase produced by fluorides; used to differentiate normal from atypical pseudocholinesterases. SEE ALSO: dibucaine number.
fluoridization
Therapeutic use of fluorides to reduce the incidence of dental decay; sometimes used to refer to the topical application of fluoride agents to the teeth.
fluorine
A gaseous chemical element, atomic no. 9, atomic wt. 18.9984032; 18F (half-life of 1.83 h) is used as a diagnostic aid in various tissue scans. [L. fluere, flow]
fluoro-
See fluor-.
fluoro-2,4-dinitrobenzene
A reagent used to combine with the free amino groups of aminoacyl residues in a peptide, thus marking those residues; the combined forms are known as DNP-proteins, Dnp-aminoacyl, ...
fluorochrome
Any fluorescent dye used to label or stain.
fluorochroming
1. Tagging or “labeling” of antibody with a fluorescent dye so that it may be observed with a microscope (using ultraviolet light), as a means of studying the origin, ...
fluorocyte
Term used occasionally for a reticulocyte that exhibits fluorescence.
fluorography
SYN: photofluorography.
fluorometer
A device employing an ultraviolet source, monochromators for selection of wavelength, and a detector of visible light; used in fluorometry.
fluorometholone
A glucocorticoid for topical use.
fluorometry
An analytic method for detecting fluorescent compounds, using a beam of ultraviolet light that excites the compounds and causes them to emit visible light. [ fluoro- + G. metron, ...
fluorophotometry
Photomultiplier tube measurement of fluorescence emitted from the interior of the eye after intravenous administration of fluorescein; used to measure the rate of formation of ...
fluoroquinolone
SYN: quinolones.
fluoroquinolones
A class of antibiotics with a broad spectrum of antimicrobial activity; well-absorbed orally, with good tissue penetration and relatively long duration of effect.The f., ...
fluororoentgenography
SYN: photofluorography.
fluoroscope
An obsolete apparatus for rendering visible to the dark-adapted eye the patterns of x-rays that have passed through a body under examination, by interposing a glass plate coated ...
fluoroscopic
Relating to or effected by means of fluoroscopy ( i.e., percutaneous biopsy).
Fluoroscopy
: An x-ray procedure that makes it possible to see internal organs in motion. Fluoroscopy uses x-ray to produce real-time video images. After the x-rays pass through the patient, ...
fluorosis
1. A condition caused by an excessive intake of fluorides (2 or more p.p.m. in drinking water), characterized mainly by mottling, staining, or hypoplasia of the enamel of the ...
fluorouracil
A pyrimidine analog; an antineoplastic effective in the treatment of some carcinomas; the cells of certain neoplasms incorporate uracil into ribonucleic acid more readily than ...
fluosol-DA
Experimental perfluorochemical solution under investigation as an artificial blood substitute.
fluoxetine hydrochloride
An oral antidepressant; selectively prevents serotonin reuptake.
fluoxymesterone
An orally effective synthetic halogenated steroid, related in chemical structure and pharmacologic action to methyltestosterone, but more potent.
flupentixol
A neuroleptic.
fluperolone acetate
A synthetic corticosteroid.
fluphenazine
A tranquilizer used as an antipsychotic and neuroleptic agent. - f. enanthate a long-acting antipsychotic, used parenterally. - f. hydrochloride an antipsychotic, used in ...
fluprednisolone
A glucocorticoid with anti-inflammatory activity and toxicity similar to those of cortisol.
flurandrenolide
An anti-inflammatory glucocorticoid used in topical preparations.
flurazepam hydrochloride
An oral hypnotic and sedative of the benzodiazepine series.
flurbiprofen
A nonsteroidal anti-inflammatory agent with analgesic, anti-inflammatory, and antipyretic actions, similar to ibuprofen.
flurogestone acetate
A progestational agent.
flurothyl
An inhalant convulsant; produces grand mal convulsions.
fluroxene
A volatile, halogenated inhalation anesthetic. SYN: 2,2,2-trifluoroethyl vinyl.
Flush
(1) A redness of the skin, typically over the cheeks or neck. A flush is usually temporary and brought on by excitement, exercise, fever, or embarrassment. Flushing is an ...
flutamide
A nonsteroidal synthetic antiandrogen used in the treatment of prostatic cancer; antineoplastic (hormonal).
Flutter
Flutter is a rapid vibration or pulsation. The difference between flutter and fibrillation is that flutter is well organized while fibrillation is not. For example, atrial ...
Flutter, atrial
Well-organized but overly rapid contractions of the atrium of the heart (usually at a rate of 250-350 contractions per minute). Flutter refers to a rapid vibration or ...
flutter-fibrillation
SYN: impure flutter.
flux
1. The discharge of a fluid material in large amount from a cavity or surface of the body. SEE ALSO: diarrhea. 2. Material discharged from the bowels. 3. A material used to ...
fly
A two-winged insect in the order Diptera. Important flies include Simulium (black f.), Calliphora (bluebottle f.), Piophila casei (cheese f.), Chrysops (deer f.), Siphona ...
Flying with diabetes
A concern for patients with diabetes is flying with medications and supplies. Letters from doctors are not recommended since security has concerns that these may be easily forged. ...
Flying, fear of
An irrational fear of flying is called aerophobia. Aerophobia also refers to irrational fear of fresh air or drafts of air. From the Greek " aero-", air or gas + "phobos", ...
Flynn
P., U.S. physician. See F.- Aird syndrome, F. phenomenon.
Fm
Symbol for fermium.
FMD
Abbreviation for foot-and-mouth disease.
fMet
Abbreviation for N-formylmethionine.
fMet-tRNA
Abbreviation for formylmethionyl tRNA.
FMLH
Abbreviation for familial hemophagocytic lymphohistiocytosis.
FMN
Abbreviation for flavin mononucleotide.
FMO3
Abbreviation for the enzyme, flavin-containing monooxygenase-3. See Fish-odor syndrome.
FMR1
The gene responsible for the production of a protein called FMRP. Lack of FMRP results in the fragile X syndrome. (FMRP is an acronym composed of the first letters of Familial ...
FMRP
As stated in the entry for FMR1, FMRP is an acronym composed of the first letters of Familial Mental Retardation Protein.
FNA
Abbreviation for fine needle aspiration biopsy.
foam
1. Masses of small bubbles on the surface of a liquid. 2. To produce such bubbles. 3. Masses of air cells in a solid or semisolid, as in f. rubber. - human fibrin f. a dry ...
focal
1. Denoting a focus. 2. Relating to a localized area.
focal spot size
The measured size of a focal spot of an x-ray tube, a function of the actual size of the cathode and the angulation of the anode surface. See focal spot.
foci
Plural of focus.
focimeter
SYN: lensometer.
focus
1. (F) The point at which the light rays meet after passing through a convex lens. 2. The center, or the starting point, of a disease process. [L. a hearth] - conjugate foci ...
Focused H and P
In common doctor language, H and P stand for the history (H) and physical (P), namely the medical history and the physical examination of the patient. The H and P are thus the ...
fodrin
A spectrin-like protein that cross-links adjacent actin filaments in vertebrate cells.
Fogarty
Thomas J., U.S. thoracic surgeon, *1934. See F. embolectomy catheter, F. clamp.
fogging
A method of refraction in which accommodation is relaxed by overcorrection with a convex spherical lens.
fogo selvagem
A form of pemphigus foliaceus, occurring in southern Brazil, in which the lesions are bullous, appear localized to the face and upper trunk, become widespread, variegated, ...
foil
An extremely thin pliable sheet of metal.
Foix
Charles, French neurologist, 1882–1927. See F.- Alajouanine myelitis, F.- Alajouanine syndrome, F.-Cavany- Marie syndrome.
Folate
Folic acid, one of the B vitamins that is a key factor in the synthesis (the making) of nucleic acid (DNA and RNA). A deficiency of folic acid after birth causes a kind of ...
fold
1. A ridge or margin apparently formed by the doubling back of a lamina. SYN: plica. 2. In the embryo, a transient elevation or reduplication of tissue in the form of a ...
Foley
Frederic E.B., U.S. urologist, 1891–1966. See F. catheter, F. Y-plasty pyeloplasty.
Foley catheter
A flexible plastic tube (a catheter) inserted into the bladder to provide continuous urinary drainage. The " Foley" has a balloon on the bladder end. After the catheter is ...
folia
Plural of folium.
foliaceous
SYN: foliate.
foliar
SYN: foliate.
foliate
Pertaining to or resembling a leaf or leaflet. SYN: foliaceous, foliar, foliose.
Folic acid
One of the B vitamins that is a key factor in the synthesis (the making) of nucleic acid (DNA and RNA). A deficiency of folic acid after birth causes a kind of anemia, namely, ...
folie
Old term for madness or insanity. [Fr. folly] - f. à deux (a-du) identical or similar mental disorders, such as a paranoid fixation, usually affecting two members of the same ...
Folin
Otto K.O., U.S. biochemist, 1867–1934. See F. reaction, F. test, F.- Looney test.
folinate
A salt or ester of folinic acid.
folinic acid
1. The active form of folic acid that acts as a formyl group carrier in transformylation reactions; the calcium salt, leucovorin calcium, has therapeutic use. 2. The term is ...
foliose
SYN: foliate.

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