12-letter words containing a, b, o, r
- 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
- 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.
- 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.
- glabrousness — The quality of being glabrous.
- 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.
- go overboard — over the side of a ship or boat, especially into or in the water: to fall overboard.
- go-away bird — a common name for a grey-plumaged lourie of the genus Corythaixoides
- 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.
- half brother — brother (def 2).
- half-brother — brother (def 2).
- hall bedroom — a small bedroom off a corridor, esp. a small bedroom formed by partitioning off the end of an upstairs corridor
- halobacteria — Plural form of halobacterium.
- harbormaster — A harbormaster is the official in charge of a harbor.
- harbour dues — the fees or charges paid for using a harbour
- harbour seal — a common earless seal, Phoca vitulina, that is greyish-black with paler markings: found off the coasts of North America, N Europe, and NE Asia
- hard done by — If you feel hard done by, you feel that you have not been treated fairly.
- haricot bean — Haricot beans are small white beans that are eaten as a vegetable. They are often sold dried rather than fresh.
- hark back to — recall: earlier era
- harmonizable — That can be harmonized.
- harrisonburg — a city in N Virginia.
- havana brown — a breed of medium-sized cat with large eyes, large ears, and a sleek brown coat
- heavy bomber — a large plane capable of carrying heavy bomb loads for long distances, especially at high altitudes.
- helicobacter — Any member of the Helicobacter bacteria.
- herring boat — a fishing boat that specializes in catching herring
- heteroblasty — the morphological changes that occur in plants between juvenility and adulthood
- heterophobia — Fear or resentment of what is different.
- hexacarbonyl — (inorganic chemistry) Any compound having six carbonyl groups.
- hexobarbital — a barbiturate with hypnotic and sedative properties
- hibernations — Plural form of hibernation.
- hkakabo razi — the highest peak in Myanmar, in Kachin state, in the N. 19,294 feet (5881 meters).
- hobby farmer — a person who runs a farm as a hobby rather than a means of making a living
- honey badger — ratel.