12-letter words containing b, o, u, r
- binocularity — binocular characteristics
- bio-security — the precautions taken to protect against the spread of lethal or harmful organisms and diseases
- biohazardous — a pathogen, especially one used in or produced by biological research.
- biomolecular — relating to a biomolecule
- bioturbation — the stirring of sediment by organisms
- bird's mouth — a right-angled notch cut in the underside of a rafter for fitting over a longitudinal member, as a wall plate.
- blabbermouth — a person who talks too much or indiscreetly
- black grouse — a large N European grouse, Lyrurus tetrix, the male of which has a bluish-black plumage and lyre-shaped tail
- black liquor — (in making wood pulp for paper) the liquor that remains after digestion.
- bloodcurdler — something causing great fright or horror: a bloodcurdler of a mystery novel.
- blow through — to leave; make off
- blue norther — a cold north wind that brings rapidly falling temperatures.
- blue pointer — a large shark, Isuropsis mako, of Australian coastal waters, having a blue back and pointed snout
- blue succory — a composite garden plant, Catananche caerulea, of southern Europe, having very hairy leaves and blue flower heads, used by the ancients as a love potion.
- blue vitriol — the fully hydrated blue crystalline form of copper sulphate
- 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
- boiler house — a building housing a boiler
- boisterously — rough and noisy; noisily jolly or rowdy; clamorous; unrestrained: the sound of boisterous laughter.
- bolt upright — If someone is sitting or standing bolt upright, they are sitting or standing very straight.
- bonnet rouge — a red cap worn by ardent supporters of the French Revolution
- bonus number — (in the National Lottery) a number announced after the normal six numbers which influences the amount of prize money paid
- book burning — the destruction of writings of which the subject, the view of the author, or the like is considered politically or socially objectionable: used as a means of censorship or oppression.
- boom-or-bust — boom-and-bust.
- booster pump — A booster pump is a pump which is used where pressure is low and needs to be increased.
- booze cruise — a day trip to a foreign country, esp from England across the English Channel to France, for the purposes of buying cheap alcohol, cigarettes, etc
- border guard — a guard stationed on a border between countries
- borough hall — a building housing the administrative offices of a borough.
- bottle gourd — an Old World cucurbitaceous climbing plant, Lagenaria siceraria, having large hard-shelled gourds as fruits
- 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
- bottom round — a cut of beef taken from outside the round, which is below the rump and above the upper leg.
- boucherville — a town in S Quebec, in E Canada, near Montreal, on the St. Lawrence.
- boulangerite — a bluish lead-gray mineral, lead antimony sulfide, Pb 5 Sb 4 S 11 , a minor ore of lead.
- boulder clay — an unstratified glacial deposit consisting of fine clay, boulders, and pebbles
- bouleuterion — a council chamber in ancient Greece.
- boulevardier — (originally in Paris) a fashionable man, esp one who frequents public places
- bound charge — any electric charge that is bound to an atom or molecule (opposed to free charge).
- bourbon rose — a hybrid rose, Rosa borboniana, having dark, carmine-colored flowers, cultivated in many horticultural varieties.
- bourgeoisify — to convert to a bourgeois attitude or appearance
- bourke-white — Margaret. 1906–71, US photographer, a pioneer of modern photojournalism: noted esp for her coverage of World War II
- bourne shell — (sh, Shellish). The original command-line interpreter shell and script language for Unix written by S.R. Bourne of Bell Laboratories in 1978. sh has been superseded for interactive use by the Berkeley C shell, csh but still widely used for writing shell scripts. There were even earlier shells, see glob. [Details?]
- bournonville — Auguste [French oh-gyst] /French oʊˈgüst/ (Show IPA), 1805–79, Danish ballet dancer and choreographer.
- bow thruster — a propeller located in a ship's bow to provide added maneuverability, as when docking.
- brachycerous — (of insects) having short antennae
- brain tumour — a tumour that is situated in the brain
- brassfounder — a person who makes things from brass
- break ground — to do something that has not been done before
- 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.