12-letter words containing u, f, o, l
- fluorescence — the emission of radiation, especially of visible light, by a substance during exposure to external radiation, as light or x-rays. Compare phosphorescence (def 1).
- fluorescents — Plural form of fluorescent.
- fluoridating — Present participle of fluoridate.
- fluoridation — the addition of fluorides to the public water supply to reduce the incidence of tooth decay.
- fluorimeters — Plural form of fluorimeter.
- fluorimetric — Alternative form of fluorometric.
- fluorinating — Present participle of fluorinate.
- fluorination — (chemistry) The introduction of fluorine into a compound by means of a chemical reaction.
- fluorocarbon — any of a class of compounds produced by substituting fluorine for hydrogen in a hydrocarbon, and characterized by great chemical stability: used chiefly as a lubricant, refrigerant, fire extinguishing agent, and in industrial and other applications in which chemical, electrical, flame, and heat resistance is essential; banned as an aerosol propellant in the U.S. because of concern about ozone layer depletion.
- fluorochrome — any of a group of fluorescent dyes used to label biological material.
- fluorography — photofluorography.
- fluorometers — Plural form of fluorometer.
- fluorometric — Of, pertaining to, or measured using fluorometry.
- fluoroscoped — Simple past tense and past participle of fluoroscope.
- fluoroscopes — Plural form of fluoroscope.
- fluoroscopic — of or relating to the fluoroscope or fluoroscopy.
- fluorouracil — a pyrimidine analog, C 4 H 3 FN 2 O 2 , used in the treatment of certain cancers.
- fluosilicate — a salt of fluosilicic acid.
- flusteration — (colloquial, dated) The act of flustering, or the state of being flustered.
- flutterboard — a kickboard.
- fluviomarine — of or formed by the combined action of river and sea.
- flying mouse — pygmy glider.
- focus puller — the member of a camera crew who adjusts the focus of the lens as the camera is tracked in or out
- folding rule — a rule composed of light strips of wood joined by rivets so as to be foldable, all the opening and closing parts being in parallel planes.
- folie a deux — the sharing of delusional ideas by two people who are closely associated.
- folliculitis — inflammation of hair follicles.
- food vacuole — a membrane-enclosed cell vacuole with a digestive function, containing material taken up in by the process of phagocytosis.
- foot-poundal — a foot-pound-second unit of work or energy equal to the work done by a force of one poundal when its point of application moves through a distance of one foot in the direction of the force. Abbreviation: ft-pdl.
- forcefulness — full of force; powerful; vigorous; effective: a forceful plea for peace.
- forebuilding — (architecture,historical) An outer defense work of a castle used to protect the entrance to the keep.
- foreclosures — Plural form of foreclosure.
- forepleasure — the aggregate of pleasurable sensations that lead to a heightened physical or emotional response, as of those aroused in sexual intercourse that lead to an orgasm.
- foresightful — care or provision for the future; provident care; prudence.
- formal cause — a person or thing that acts, happens, or exists in such a way that some specific thing happens as a result; the producer of an effect: You have been the cause of much anxiety. What was the cause of the accident?
- former pupil — someone who used to attend a particular school or be a student of a particular teacher
- formula milk — An artificial substitute for breast milk intended for feeding infants. It can come in powdered form to be mixed with water or in instant liquid form.
- formula unit — (of an ionic compound that does not form molecules, as most salts) the chemical formula with the least number of elements out of the set of empirical formulas having the same proportion of ions as elements: NaCl is the formula unit for the ionic compound sodium chloride.
- formularized — Simple past tense and past participle of formularize.
- formularizer — One who formularizes.
- formularizes — Third-person singular simple present indicative form of formularize.
- formulations — Plural form of formulation.
- formyl group — the univalent group HCO–, derived from formic acid.
- fort pulaski — Count Casimir [kaz-uh-meer] /ˈkæz əˌmɪər/ (Show IPA), 1748–79, Polish patriot; general in the American Revolutionary army.
- fortran-plus — Fortran for the DAP parallel machine, implements many Fortran 90 features.
- fortruncible — A cross between Fortran and RUNCIBLE for the IBM 650. Listed in CACM 2(5):16 (May 1959).
- fortuitously — In a fortuitous manner.
- fosbury flop — a modern high-jumping technique whereby the jumper clears the bar headfirst and backwards
- fossil fuels — any combustible organic material, as oil, coal, or natural gas, derived from the remains of former life.
- foul-mouthed — using obscene, profane, or scurrilous language; given to filthy or abusive speech.
- foul-tasting — having a very unpleasant taste