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12-letter words containing r, u, n, o, f

  • float around — A rumour or idea that is floating around is often heard or talked about.
  • flourishment — The act or state of flourishing.
  • flow country — an area of moorland and peat bogs in northern Scotland known for its wildlife, now partly afforested
  • fluoranthene — (organic compound) A polycyclic aromatic hydrocarbon consisting of a benzene ring attached to each of the rings of a naphthalene molecule; it is carcinogenic, and is a product of incomplete combustion.
  • fluoresceine — Alternative spelling of fluorescein.
  • 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.
  • 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.
  • 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.
  • 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.
  • food counter — a counter in a shop, bar, cafeteria, etc where food is sold or served
  • 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.
  • foregrounded — Simple past tense and past participle of foreground.
  • 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.
  • 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).
  • foundationer — a person supported by funds from a foundation, or serving as a member of a foundation
  • foundry sand — silica-based sand mixed with clay, oil, etc, to improve its cohesive strength, used in moulding
  • foundry type — type cast in individual characters for setting by hand.
  • four hundred — the exclusive social set of a city or area.
  • four-channel — Audio. quadraphonic.
  • four-corners — a point in the SW U.S., at the intersection of 37° N latitude and 109° W longitude, where the boundaries of four states—Arizona, Utah, Colorado, and New Mexico—meet: the only such point in the U.S.
  • 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.
  • fourfoldness — the quality of consisting of four parts
  • fourteenthly — in (the) fourteenth place
  • 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.
  • fringe group — a group that is on the periphery of a larger organization because its views are more extreme than the majority
  • frondiferous — Producing fronds.
  • front burner — Informal. a condition or position of top priority: Put the project on the front burner and finish it as soon as possible.
  • front runner — a person who leads in any competition.
  • front-runner — In a competition or contest, the front-runner is the person who seems most likely to win it.
  • frontrunners — Plural form of frontrunner.
  • frontrunning — the practice by market makers of using advance information provided by their own investment analysts before it has been given to clients
  • fructosamine — (organic compound) A chemical compound that can be considered the result of a reaction between fructose and ammonia or an amine (with a molecule of water being released).
  • frumentation — (in ancient Rome) a public donation of grain, often given to citizens during times of unease
  • frustrations — Plural form of frustration.
  • full frontal — showing the entire front: full-frontal nudity.
  • full-frontal — showing the entire front: full-frontal nudity.
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