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12-letter words containing a, b, o

  • book matches — safety matches made of paper and fastened into a small cardboard folder
  • booklet pane — Philately. any of a number of panes or small pages of postage stamps, stapled together into a booklet for the convenience of users.
  • boolean ring — a nonempty collection of sets having the properties that the union of two sets of the collection is a set in the collection and that the relative complement of each set with respect to any other set is in the collection.
  • boomer state — Oklahoma
  • boomeranging — a bent or curved piece of tough wood used by the Australian Aborigines as a throwing club, one form of which can be thrown so as to return to the thrower.
  • booster seat — A booster seat or a booster cushion is a special seat which allows a small child to sit in a higher position, for example at a table or in a car.
  • boot-scraper — a contraption consisting of an upright metal shape formerly placed outside some houses to enable people to scrape the mud from their boots before going in
  • bootleg play — a play in which the quarterback pretends to hand the ball to a teammate, hides it by placing it next to his hip, and runs with it.
  • border guard — a guard stationed on a border between countries
  • border state — a state adjacent to a border
  • border taxes — taxes payable on goods taken across a border
  • born-digital — relating to or noting documents, images, etc., that are created and managed in electronic form: electronic preservation of born-digital content; a born-digital e-book that will not be available in print.
  • borosilicate — a salt of boric and silicic acids
  • borough hall — a building housing the administrative offices of a borough.
  • bothy ballad — a folk song, esp one from the farming community of NE Scotland
  • botticellian — Sandro [san-droh,, sahn-;; Italian sahn-draw] /ˈsæn droʊ,, ˈsɑn-;; Italian ˈsɑn drɔ/ (Show IPA), (Alessandro di Mariano dei Filipepi) 1444?–1510, Italian painter.
  • bottle glass — glass used for making bottles, consisting of a silicate of sodium, calcium, and aluminium
  • bottle party — a party to which guests bring drink
  • bottlewasher — a person or machine that washes bottles.
  • bottom break — a branch coming from the bottom of a plant stem, usually formed by pinching and disbudding.
  • bottom grass — any grass that grows on bottoms or lowlands.
  • 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 yeast — a yeast whose cells, in the manufacture of wine and lager beer, fall to the bottom as a sediment.
  • boudin blanc — a boiled sausage made with light-colored meat, as veal or chicken, and without blood
  • bougainville — an island in the W Pacific, in Papua New Guinea: the largest of the Solomon Islands: unilaterally declared independence in 1990; occupied by government troops in 1992, and granted autonomy in 2001. Chief town: Kieta. Area: 10 049 sq km (3880 sq miles)
  • 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
  • boulevardier — (originally in Paris) a fashionable man, esp one who frequents public places
  • bounce flash — a flash lamp designed to produce a bounced flash.
  • bound charge — any electric charge that is bound to an atom or molecule (opposed to free charge).
  • bowel cancer — cancer of the colon
  • bowling ball — a round, heavy ball for bowling, usually made of hard rubber or plastic, with holes drilled into it for the bowler's thumb and two fingers.
  • box lacrosse — a form of lacrosse played indoors, usually on a hockey rink with a wooden floor, between two teams of six players.
  • box magazine — a rectangular cartridge holder in a submachine or light machine gun.
  • boxgrove man — a type of primitive man, probably Homo heidelbergensis, and probably dating from the Middle Palaeolithic period some 500 000 years ago; remains were found at Boxgrove in West Sussex in 1993 and 1995
  • boxing match — a competition between two boxers
  • boyoma falls — a series of seven cataracts in the NE Democratic Republic of Congo, on the upper River Congo: forms an unnavigable stretch of 90 km (56 miles), which falls 60 m (200 ft)
  • brachycerous — (of insects) having short antennae
  • bracket foot — a corner foot of a chest or the like joining the sides in a concave line.
  • braggadocios — empty boasting; bragging.
  • brain tumour — a tumour that is situated in the brain
  • brainstormer — a person who brainstorms
  • branch depot — one of a several depots receiving stock from the same central supplier
  • branch point — Electricity. a point in an electric network at which three or more conductors meet.
  • brass-collar — unwaveringly faithful to a political party; voting the straight ticket: a brass-collar Democrat.
  • brassfounder — a person who makes things from brass
  • break ground — to do something that has not been done before
  • break of day — dawn; daybreak.
  • breaker zone — the area offshore where waves break, between the outermost breaker and the limit of wave uprush; the zone within which waves approaching the coastline start breaking, usually in water depths of 16 to 32 feet (5 to 10 meters).
  • breakthrough — A breakthrough is an important development or achievement.
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