13-letter words containing a, b, o, i
- black hickory — a species of smooth-barked hickory, Carya tomentosa, with fragrant foliage that turns bright yellow in autumn
- black section — (in Britain in the 1980s) an unofficial group within the Labour Party in any constituency that represented the interests of local Black people
- blamestorming — a discussion or meeting for the purpose of assigning blame.
- blasco ibanez — Vicente (biˈθente). 1867–1928, Spanish novelist, whose books include Blood and Sand (1909) and The Four Horsemen of the Apocalypse (1916)
- blastogenesis — the theory that inherited characteristics are transmitted only by germ plasm
- blastomycosis — a fungal infection particularly affecting the lungs
- block capital — a sans-serif letter with lines of uniform weight.
- block diagram — a diagram showing the interconnections between the parts of an industrial process
- blood diamond — a diamond sold to help finance a military campaign
- blood-stained — stained with blood: a bloodstained knife.
- bloomfieldian — Linguistics. influenced by, resembling, or deriving from the linguistic theory and the methods of linguistic analysis advocated by Leonard Bloomfield, characterized especially by emphasis on the classification of overt formal features.
- blot analysis — a technique for analysing biological molecules, such as proteins (Western blot analysis), DNA (Southern blot analysis), and RNA (Northern blot analysis), involving their separation by gel electrophoresis, transfer to a nitrocellulose sheet, and subsequent analysis by autoradiography
- board meeting — a meeting of the board of a company or other organization
- boarding card — A boarding card is a card which a passenger must have when boarding a plane or a boat.
- boarding fees — fees paid for boarding at a school
- boarding pass — A boarding pass is a card that a passenger must have when boarding a plane or a boat.
- boardinghouse — a private house in which accommodation and meals are provided for paying guests
- boat neckline — a wide, high neckline that follows the curve of the collarbone and ends in points on the shoulder seams.
- bodvar bjarki — the greatest of Rolf Kraki's heroes, often fighting in the likeness of a bear: probably identical with Beowulf.
- boiling range — A boiling range is the temperature range involved in the distillation of oil, from the start to the time when it evaporates.
- bois de vache — dried buffalo dung, used as fuel by Canadian and U.S. fur trappers in the 18th and 19th centuries.
- bomb disposal — Bomb disposal is the job of dealing with bombs which have not exploded, by taking out the fuse or by blowing them up in a controlled explosion.
- bombastically — (of speech, writing, etc.) high-sounding; high-flown; inflated; pretentious.
- bombax family — the plant family Bombacaceae, typified by tropical deciduous trees having palmate leaves, large and often showy solitary or clustered flowers, and dry fruit with a woolly pulp, and including the baobab and silk-cotton tree.
- bona vacantia — unclaimed goods
- boniface viii — original name Benedict Caetano. ?1234–1303, pope (1294–1303)
- bonin islands — a group of 27 volcanic islands in the W Pacific: occupied by the US after World War II; returned to Japan in 1968. Largest island: Chichijima. Area: 103 sq km (40 sq miles)
- book learning — knowledge gained from books rather than from direct personal experience
- book-learning — knowledge acquired by reading books, as distinguished from that obtained through observation and experience.
- booking agent — an agent who makes bookings, as reservations for travel or the theater or engagements for performers, for clients.
- boolean logic — (logic) A logic based on Boolean algebra.
- boomerang kid — a young adult who, after having lived on his or her own for a time, returns to live in the parental home, usually due to financial problems caused by unemployment or the high cost of living independently
- borage family — any member of the plant family Boraginaceae, typified by herbaceous plants, shrubs, and trees having simple, alternate, hairy leaves and usually blue, five-lobed flowers in a cluster that uncoils as they bloom, including borage, bugloss, and forget-me-not.
- boraginaceous — of, relating to, or belonging to the Boraginaceae, a family of temperate and tropical typically hairy-leaved flowering plants that includes forget-me-not, lungwort, borage, comfrey, and heliotrope
- borlotti bean — variety of kidney bean
- borna disease — viral disease found in mammals, esp horses
- boron carbide — a black extremely hard inert substance having a high capture cross section for thermal neutrons. It is used as an abrasive, refractory, and in control rods in nuclear reactors. Formula: B4C
- bosman ruling — an EU ruling that allows out-of-contract footballers to leave their clubs without the clubs receiving a transfer fee
- boston matrix — a two-dimensional matrix, used in planning the business strategy of a large organization, that identifies those business units in the organization that generate cash and those that use it
- boudoir grand — a domestic grand piano between 5 and 6 feet in length
- bougainvillea — Bougainvillea is a climbing plant that has thin, red or purple flowers and grows mainly in hot countries.
- bouillabaisse — Bouillabaisse is a rich stew or soup of fish and vegetables.
- boundary line — a line marking one of the edges of a playing area
- bouquet garni — A bouquet garni is a bunch of herbs that are tied together and used in cooking to add flavour to the food.
- boutros-ghali — ˈBoutros (ˈbutroʊs ) ; bo̅oˈtrōs) 1922- ; Egypt. diplomat: secretary-general of the United Nations (1992-96)
- bowling alley — A bowling alley is a building which contains several tracks for bowling.
- bowling match — a game of bowls
- boys' brigade — (in Britain) an organization for boys, founded in 1883, with the aim of promoting discipline and self-respect
- brace molding — keel1 (def 6).
- brachiosaurus — a dinosaur of the genus Brachiosaurus, up to 30 metres long: the largest land animal ever known