12-letter words containing a, u, t
- biarticulate — having two joints, as the antennae of certain insects.
- biauriculate — having two auricles or earlike parts
- bifunctional — having two functions
- bilinguality — the ability to speak two languages fluently.
- binocularity — binocular characteristics
- bioacoustics — the study of animals' use of sound
- bioturbation — the stirring of sediment by organisms
- birket karun — a lake in N Egypt. 25 miles (40 km) long; about 5 miles (8 km) wide; 90 sq. mi. (233 sq. km).
- birth trauma — an emotional shock caused by being born.
- biscuit ware — unglazed earthenware
- blabbermouth — a person who talks too much or indiscreetly
- black beauty — a Biphetamine capsule.
- black butter — beurre noir.
- 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.
- black walnut — a North American walnut tree, Juglans nigra, with hard dark wood and edible oily nuts
- blackcurrant — In Europe, blackcurrants are a type of very small, dark purple fruits that grow in bunches on bushes.
- blastulation — the process of blastula formation
- blaue reiter — der Blaue Reiter. a group of German expressionist painters formed in Munich in 1911, including Kandinsky and Klee, who sought to express the spiritual side of man and nature, which they felt had been neglected by impressionism
- blue catfish — a large freshwater catfish, Ictalurus furcatus, that is a popular food fish in the states of the Mississippi River valley.
- bluefin tuna — the largest tuna (Thunnus thynnus): it has bright red flesh and is important as a game and food fish
- blues guitar — blues guitar music
- 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
- brains trust — a group of knowledgeable people who discuss topics in public or on radio or television
- breakthrough — A breakthrough is an important development or achievement.
- breastplough — a plough driven by the worker's breast, often used to pare turf
- breastsummer — a girder extending across a large opening in a building to support the wall above, used primarily over shop-fronts
- 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.
- brevicaudate — having a short tail.
- bridal suite — a room or set of rooms in a hotel for newly married couples
- 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)
- brushability — the quality of being brushable
- bubble float — a hollow spherical float that can be weighted with water to aid casting
- buck private — a common soldier
- buck's party — a party for men only, esp one held for a man before he is married
- 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.
- buenaventura — a major port in W Colombia, on the Pacific coast. Pop: 250 000 (2005 est)
- buffalo gnat — any of various small North American blood-sucking dipterous insects of the genus Simulium and related genera: family Simuliidae
- buffer state — A buffer state is a peaceful country situated between two or more larger hostile countries.
- bugger about — If someone buggers about or buggers around, they waste time doing unnecessary things.
- bull mastiff — a large powerful breed of dog with a short usually fawn or brindle coat, developed by crossing the bulldog with the mastiff
- bull-baiting — the setting of dogs on a chained or confined bull, formerly a popular pastime in England
- bullet train — a passenger train that travels at very high speed
- bullock cart — a cart pulled by one or two bullocks