12-letter words containing r, o, f, l
- 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.
- 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.
- fm cyclotron — a type of cyclotron that synchronizes its accelerating voltage with particle velocity in order to compensate for the relativistic mass increase of the particle as it approaches the speed of light.
- focus puller — the member of a camera crew who adjusts the focus of the lens as the camera is tracked in or out
- folding door — a door with hinged sections that can be folded flat against one another when opened.
- 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.
- folkloristic — the traditional beliefs, legends, customs, etc., of a people; lore of a people.
- followership — the ability or willingness to follow a leader.
- food allergy — an allergy to a specific type of food
- foolhardiest — Superlative form of foolhardy.
- foot soldier — an infantryman.
- foot-lambert — a unit of luminance or photometric brightness, equal to the luminance of a surface emitting a luminous flux of one lumen per square foot, the luminance of a perfectly reflecting surface receiving an illumination of one foot-candle. Abbreviation: fL.
- footsoldiers — Plural form of footsoldier.
- for a giggle — as a joke or prank; not seriously
- for all that — the whole of (used in referring to quantity, extent, or duration): all the cake; all the way; all year.
- for all time — forever, for eternity
- forbearingly — In a forbearing manner.
- forbiddingly — In a forbidding manner.
- forcefulness — full of force; powerful; vigorous; effective: a forceful plea for peace.
- forcibleness — The quality of being forcible.
- fore-topsail — a topsail set on a foremast on a ship.
- forebodingly — a prediction; portent.
- forebuilding — (architecture,historical) An outer defense work of a castle used to protect the entrance to the keep.
- forecastable — to predict (a future condition or occurrence); calculate in advance: to forecast a heavy snowfall; to forecast lower interest rates.
- foreclosures — Plural form of foreclosure.
- forehandedly — Prudently, with thrift and foresight.
- foreign bill — a bill of exchange drawn on a payer in one country by a maker in another.
- foreign-flag — (of a vessel or aircraft) having a registry under a nationality other than one's own: rivalry between U.S.-flag freighters and foreign-flag ships.
- forensically — pertaining to, connected with, or used in courts of law or public discussion and debate.
- 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.
- foreseeingly — by way of foreseeing
- foresightful — care or provision for the future; provident care; prudence.
- forest floor — the above- ground layer of a forest made up of tree roots, soil and decaying matter
- forestalling — Present participle of forestall.
- forestaysail — a triangular sail set on a forestay; the innermost headsail of a vessel.
- foretopsails — Plural form of foretopsail.
- foretriangle — the triangular area formed by the deck, foremast, and headstay of a sailing vessel