12-letter words containing f, a, b, r
- fingerboards — Plural form of fingerboard.
- fire balloon — a montgolfier.
- fire blanket — a large blanket-like piece of fire-resistant material such as fibreglass used in smothering a fire
- fire brigade — a group of firefighters, especially as formed temporarily or called upon to assist a fire department in an emergency.
- firebreather — A performer who creates fireballs by breathing a fine mist of fuel over an open flame.
- flabbergasts — Plural form of flabbergast.
- flabberghast — (archaic) Alternative form of flabbergast.
- flabelliform — Shaped like a fan; flabellate.
- flabergasted — Simple past tense and past participle of flabergast.
- flame carbon — a carbon electrode containing metallic salts that colour the arc in a flame-arc light
- flannelboard — a flannel-covered surface to which other flannel pieces, as letters of the alphabet, numbers, etc., adhere merely by contact, used mainly in schools as a visual aid.
- flat battery — power cell that has run down
- flinders bar — a bar of soft iron, mounted vertically beneath a compass to compensate for vertical magnetic currents.
- float bridge — a bridge, as from a pier to a boat, floating at one end and hinged at the other to permit loading and unloading at any level of water.
- floating rib — one member of the two lowest pairs of ribs, which are attached neither to the sternum nor to the cartilages of other ribs.
- flow breccia — a volcanic breccia that has solidified from a lava flow.
- 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.
- flutterballs — Plural form of flutterball.
- flutterboard — a kickboard.
- fly in amber — a strange relic or reminder of the past
- 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.
- forbearances — Plural form of forbearance.
- forbearingly — In a forbearing manner.
- forebearance — Misspelling of forbearance.
- forecastable — to predict (a future condition or occurrence); calculate in advance: to forecast a heavy snowfall; to forecast lower interest rates.
- forgeability — (metallurgy) The quality or degree of being forgeable.
- formalizable — Capable of being formalized.
- forward bias — a voltage applied to a circuit or device, esp a semiconductor device, in the direction that produces the larger current
- frame buffer — (hardware) Part of a video system in which an image is stored, pixel by pixel and which is used to refresh a raster image. The term "video memory" suggests a fairly static display whereas a frame buffer holds one frame from a sequence of frames forming a moving image. Frame buffers are found in frame grabbers and time base correction systems, for example.
- franchisable — a privilege of a public nature conferred on an individual, group, or company by a government: a franchise to operate a bus system.
- francophobia — the phenomenon of hating French speakers, culture, or people
- frangibility — The state or quality of being frangible.
- free balloon — a balloon, often equipped to carry passengers, that drifts with air currents and whose ascent and descent are controlled by the release of ballast and buoyant gas.
- french bread — a yeast-raised bread made of dough containing water and distinguished by its thick, well-browned crust, usually made in long, slender, tapered loaves. Compare baguette (def 3).
- french broad — a river in W North Carolina and E Tennessee, flowing N and NW to join the Holston River at Knoxville to form the Tennessee River. 210 miles (338 km) long.
- frequentable — Accessible.
- fribble away — to use wastefully
- frigate bird — any of several predacious seabirds of the genus Fregata, having fully webbed feet.
- frigatebirds — Plural form of frigatebird.
- frontal bone — a broad membrane bone of the skull, forming the forehead and the upper portion of each orbit.
- frontal lobe — the anterior part of each cerebral hemisphere, in front of the central sulcus.
- fruit basket — a basket containing a variety of fruits sent as a gift
- funambulator — a tightrope-walker; a funambulist
- gambrel roof — a gable roof, each side of which has a shallower slope above a steeper one. Compare mansard (def 1).
- graft hybrid — a hybrid plant that is produced by grafting and that exhibits characters of both the stock and the scion.
- half brother — brother (def 2).
- half-brother — brother (def 2).
- half-cup bra — a bra that covers three-quarters of the breasts rather than all of the breasts
- hobby farmer — a person who runs a farm as a hobby rather than a means of making a living
- imperforable — not able to be perforated