12-letter words containing i, n, u
- fifth column — a group of people who act traitorously and subversively out of a secret sympathy with an enemy of their country.
- final clause — a clause expressing intention or purpose
- finno-ugrian — pertaining to the Finns and the Ugrians.
- fire curtain — safety curtain.
- firing squad — a military detachment assigned to execute a condemned person by shooting.
- first cousin — cousin (def 1).
- fissilingual — having a forked tongue
- five hundred — a variety of euchre in which a joker and widow are included, the object being to score 500 points first.
- flammulation — a small flame-shaped marking, esp those seen on some birds
- flat-hunting — the activity of looking for a flat in which to live
- flight nurse — a nurse in the U.S. Air Force who tends patients being transported by airplane.
- flindermouse — (obsolete) A bat (the mammal).
- flocculating — Present participle of flocculate.
- flocculation — to form into flocculent masses.
- flourishment — The act or state of flourishing.
- fluctuations — Plural form of fluctuation.
- fluidization — The act or process of fluidizing.
- fluoresceine — Alternative spelling of fluorescein.
- fluoridating — Present participle of fluoridate.
- fluoridation — the addition of fluorides to the public water supply to reduce the incidence of tooth decay.
- fluorinating — Present participle of fluorinate.
- fluorination — (chemistry) The introduction of fluorine into a compound by means of a chemical reaction.
- fluphenazine — a potent tranquilizer, C 22 H 26 F 3 N 3 OS, derived from phenothiazine and used in various forms for the management of certain neurological or psychotic disorders and for short-term treatment of acute anxiety.
- flusteration — (colloquial, dated) The act of flustering, or the state of being flustered.
- fluviomarine — of or formed by the combined action of river and sea.
- flux density — the magnetic, radiant, or electric flux per unit of cross-sectional area.
- flux linkage — the product of the magnetic flux and the number of turns in a given coil.
- flying lemur — either of two lemurlike mammals, Cynocephalus variegatus, of southeastern Asia and the East Indies, or C. volans, of the Philippines, having broad folds of skin on both sides of the body to aid in gliding from tree to tree: now rare.
- flying mouse — pygmy glider.
- flying squad — a trained, mobile group of police officers, business executives, labor officials, or the like, capable of performing specialized tasks whenever or wherever sent, often for use in emergencies.
- 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.
- forebuilding — (architecture,historical) An outer defense work of a castle used to protect the entrance to the keep.
- 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.
- formulations — Plural form of formulation.
- fortruncible — A cross between Fortran and RUNCIBLE for the IBM 650. Listed in CACM 2(5):16 (May 1959).
- foul-tasting — having a very unpleasant taste
- foundational — the basis or groundwork of anything: the moral foundation of both society and religion.
- foundationer — a person supported by funds from a foundation, or serving as a member of a foundation
- fountain pen — a pen with a refillable reservoir that provides a continuous supply of usually fluid ink to its point.
- fountainhead — a fountain or spring from which a stream flows; the head or source of a stream.
- four-engined — (of an aircraft) having four engines
- four-in-hand — a long necktie to be tied in a slipknot with the ends left hanging.
- four-walling — a form of distribution and exhibition, esp. of films, in which a distributor or producer rents a theater for a fixed amount, pays all advertising and operating costs, and collects all box-office receipts
- fourdriniers — Plural form of fourdrinier.
- franc-tireur — a sharpshooter in the French army.
- free running — Free running is the activity of running through areas in a town, using skilful movements to jump over walls and other objects.
- free-cutting — (of a metal alloy) having good machinability: free-cutting steel.
- french union — a former association of France and its overseas territories, colonies, and protectorates as constituted in 1946: superseded by the French Community in 1958.
- friction rub — the sound, heard through a stethoscope, made by the rubbing together of the two inflamed layers of pericardium in patients with pericarditis or of pleura in patients with pleurisy
- friend-court — amicus curiae.