12-letter words containing a, b, o
- flood basalt — a very extensive lava flow of basaltic composition that has issued from a fissure, often to be found as part of a series of such flows one on top of another, forming a plateau
- 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.
- flutterboard — a kickboard.
- 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
- francophobia — the phenomenon of hating French speakers, culture, or people
- 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 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.
- 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.
- funambulator — a tightrope-walker; a funambulist
- functionable — functional (def 3).
- futtock band — a metal band around a lower mast somewhat below the top, for holding the lower ends of a futtock shroud.
- gable window — a window in or under a gable.
- gaboon viper — a large, venomous snake, Bitis gabonica, of tropical African forests, having large retractable fangs and geometrically patterned scales of yellow, brown, and sometimes purple.
- gainsborough — Thomas, 1727–88, English painter.
- gallows bird — a person who deserves to be hanged.
- gamboge tree — any of several tropical Asian trees of the genus Garcinia, esp G. hanburyi, that yield this resin: family Clusiaceae
- gambrel roof — a gable roof, each side of which has a shallower slope above a steeper one. Compare mansard (def 1).
- garbological — Of or relating to garbology.
- geobotanical — of or relating to geobotany
- georges bank — a bank extending generally NE from Nantucket: fishing grounds. 150 miles (240 km) long.
- georgian bay — the NE part of Lake Huron, in Ontario, Canada. 6000 sq. mi. (15,500 sq. km).
- germanophobe — a person who hates or fears Germany, Germans, or German culture.
- get a bun on — to become drunk
- glabrousness — The quality of being glabrous.
- glassblowing — the art or process of forming or shaping a mass of molten or heat-softened glass into ware by blowing air into it through a tube.
- glioblastoma — A highly invasive glioma in the brain.
- global index — (filename extension) (gid) The filename extension of a Windows 95 "global index" file. .gid files are created by the help browser internal to Windows 95 (also available for other Windows versions) for WinHelp files (hlp), as well as for storing user preferences, such as window position.
- global reach — When people talk about the global reach of a company or industry, they mean its ability to have customers in many different parts of the world.
- glossophobia — The fear of public speaking.
- go ballistic — of or relating to ballistics.
- go overboard — over the side of a ship or boat, especially into or in the water: to fall overboard.
- go walkabout — to wander through the bush
- go-away bird — a common name for a grey-plumaged lourie of the genus Corythaixoides
- gold-beating — the art or process of beating out gold into gold leaf.
- gondola back — a chair or couch back curving forward and downward to form arms.
- granuloblast — an immature granulocyte.
- graphophobia — Fear or dislike of writing.
- gravicembalo — a harpsichord.
- ground cable — a heavy chain for securing permanent floating moorings, as a number of mooring buoys.
- gypsum board — wallboard composed primarily of gypsum and often used as sheathing.
- habilitation — to clothe or dress.