12-letter words containing a, b, o, u, t
- bifunctional — having two functions
- binocularity — binocular characteristics
- bioacoustics — the study of animals' use of sound
- bioturbation — the stirring of sediment by organisms
- blabbermouth — a person who talks too much or indiscreetly
- black locust — Also called false acacia, yellow locust. a North American tree, Robinia pseudoacacia, of the legume family, having pinnate leaves and clusters of fragrant white flowers.
- black tongue — canine pellagra.
- blastulation — the process of blastula formation
- boar-hunting — the practice of hunting wild boars
- boarding out — the local-authority practice of placing a client in a foster family or voluntary establishment and paying for it
- boatbuilding — Boatbuilding is the craft or industry of making boats.
- bottom quark — a type of quark with a mass of c. 4.7 to 5.3 GeV/c2, a negative charge that is 1⁄3 the charge of an electron, zero charm, and zero strangeness
- boulangerite — a bluish lead-gray mineral, lead antimony sulfide, Pb 5 Sb 4 S 11 , a minor ore of lead.
- brain tumour — a tumour that is situated in the brain
- breakthrough — A breakthrough is an important development or achievement.
- breastplough — a plough driven by the worker's breast, often used to pare turf
- breath group — a sequence of sounds articulated in the course of a single exhalation; an utterance or part of an utterance produced between pauses for breath.
- brontosaurus — any very large herbivorous quadrupedal dinosaur of the genus Apatosaurus, common in North America during Jurassic times, having a long neck and long tail: suborder Sauropoda (sauropods)
- bubble float — a hollow spherical float that can be weighted with water to aid casting
- bucket about — (esp of a boat in a storm) to toss or shake violently
- bud mutation — a variation produced by a genetic alteration in the bud such that the seeds produced by the resulting growth perpetuate the change in succeeding generations.
- buffalo gnat — any of various small North American blood-sucking dipterous insects of the genus Simulium and related genera: family Simuliidae
- bugger about — If someone buggers about or buggers around, they waste time doing unnecessary things.
- bullock cart — a cart pulled by one or two bullocks
- bunco artist — a confidence trickster or con artist
- burnt almond — a sweet consisting of an almond enclosed in burnt sugar
- burnt orange — of a dark orange colour, sometimes due to calcination of orange pigment
- burro's tail — a succulent Mexican plant, Sedum morganianum, of the stonecrop family, bearing small, rose-colored flowers and long, hanging, nearly cylindrical stems with closely packed whitish-green leaves.
- button quail — any small quail-like terrestrial bird of the genus Turnix, such as T. sylvatica (striped button quail), occurring in tropical and subtropical regions of the Old World: family Turnicidae, order Gruiformes (cranes, rails, etc)
- cacao butter — cocoa butter
- cocaine bust — an arrest for the possession of cocaine
- cocoa butter — a yellowish-white waxy solid that is obtained from cocoa beans and used for confectionery, soap, etc
- coconut crab — a large, terrestrial crab, Birgus latro, of islands in the South Pacific, that feeds on coconuts.
- concubitancy — a custom requiring marriage between two people, esp a custom requiring a woman to marry her husband's brother on her husband's death
- confabulated — Simple past tense and past participle of confabulate.
- confabulator — to converse informally; chat.
- conglobulate — to form into a globe or ball
- connubiality — of marriage or wedlock; matrimonial; conjugal: connubial love.
- constabulary — In Britain and some other countries, a constabulary is the police force of a particular area.
- contributary — contributory
- conurbations — Plural form of conurbation.
- corbel vault — a structure having the form of a vault but constructed on the principle of a corbel arch.
- costume ball — a fancy dress ball
- countability — the fact of being countable
- counterblast — A counterblast is a strong angry reply to something that has been said, written, or done.
- counterbrace — a rope on the leeward side of a ship, controlling the position of the fore-topsail
- county board — the governing body of a U.S. county consisting usually of three or more elected members.
- customisable — Alternative spelling of customizable.
- customizable — to modify or build according to individual or personal specifications or preference: to customize an automobile.
- deambulatory — a place for walking often with a covering overhead