Glossary · Nouns · F
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TermTypeDefinitionClassificationsUpdated
Flowering HazelnounMWEany of several Asiatic deciduous shrubs cultivated for their nodding racemes of yellow flowers that appear before the leavesverified
Flowering MaplenounMWEan ornamental plant of the genus Abutilon having leaves that resemble maple leavesverified
Flowering QuincenounMWEAsiatic ornamental shrub with spiny branches and pink or red blossomsverified
Flowering RaspberrynounMWEshrubby raspberry of eastern North America having showy rose to purplish flowers and red or orange thimble-shaped fruitverified
Flowering SpurgenounMWEcommon perennial United States spurge having showy white petallike bractsverified
Flowering StonenounMWEany plant of the genus Lithops native to Africa having solitary yellow or white flowers and thick leaves that resemble stonesverified
Flowering TobacconounMWESouth American ornamental perennial having nocturnally fragrant greenish-white flowersverified
Flowering WintergreennounMWEcommon trailing perennial milkwort of eastern North America having leaves like wintergreen and usually rosy-purple flowers with winged sepalsverified
Fluenounorgan pipe whose tone is produced by air passing across the sharp edge of a fissure or lipverified
Flue PipenounMWEorgan pipe whose tone is produced by air passing across the sharp edge of a fissure or lipverified
Fluent AphasianounMWEaphasia characterized by fluent but meaningless speech and severe impairment of the ability understand spoken or written wordsverified
Fluid DrachmnounMWEa British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimetersverified
Fluid DramnounMWEa British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimetersverified
Fluidouncenouna British imperial unit of capacity or volume (liquid or dry) equal to 8 fluid drams or 28.416 cubic centimeters (1.734 cubic inches)verified
Fluidramnouna British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimetersverified
Flumenounwatercourse that consists of an open artificial chute filled with water for power or for carrying logsverified
Flunitrazepannouna depressant and tranquilizer (trade name Rohypnol) often used in the commission of sexual assaultverified
Fluorescein IsocyanatenounMWEa fluorochrome commonly conjugated with antibodies for use in indirect immunofluorescenceverified
Fluorescein IsothiocyanatenounMWEa fluorochrome commonly conjugated with antibodies for use in indirect immunofluorescenceverified
Fluorescencenounlight emitted during absorption of radiation of some other (invisible) wavelengthverified
Fluorescence MicroscopynounMWElight microscopy in which the specimen is irradiated at wavelengths that excite fluorochromesverified
Fluorescent LampnounMWElamp consisting of a tube coated on the inside with a fluorescent materialverified
Fluorochromenounany of various fluorescent substances used in fluorescence microscopy to stain specimensverified
Fluoroscopenounan X-ray machine that combines an X-ray source and a fluorescent screen to enable direct observationverified
Fluorosisnouna pathological condition resulting from an excessive intake of fluorine (usually from drinking water)verified
Fluosilicic AcidnounMWEan unstable poisonous corrosive acid known primarily in the form of its saltsverified
Fluoxetinenouna selective-serotonin reuptake inhibitor commonly prescribed as an antidepressant (trade names Prozac or Sarafem)verified
Fluoxetine HydrocholoridenounMWEa selective-serotonin reuptake inhibitor commonly prescribed as an antidepressant (trade names Prozac or Sarafem)verified
Flurbiprofennouna nonsteroidal anti-inflammatory drug (trade name Ansaid) that is administered only orallyverified
Flushless ToiletnounMWEa toilet that relies on bacteria to break down waste matter (instead of using water)verified
Flutingnouna groove or furrow in cloth etc (particularly a shallow concave groove on the shaft of a column)verified
Flux DensitynounMWE(physics) the number of changes in energy flow across a given surface per unit areaverified
Fly AgaricnounMWEpoisonous (but rarely fatal) woodland fungus having a scarlet cap with white warts and white gillsverified
Fly AshnounMWEfine solid particles of ash that are carried into the air when fuel is combustedverified
Fly FrontnounMWEan opening in a garment that is closed by a zipper or by buttons concealed under a fold of clothverified