13-letter words containing a, b, c, i
- blaise pascal — Blaise [bleyz;; French blez] /bleɪz;; French blɛz/ (Show IPA), 1623–62, French philosopher and mathematician.
- blanchisseuse — a washer-woman
- blasco ibanez — Vicente (biˈθente). 1867–1928, Spanish novelist, whose books include Blood and Sand (1909) and The Four Horsemen of the Apocalypse (1916)
- 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
- boarding card — A boarding card is a card which a passenger must have when boarding a plane or a boat.
- boat neckline — a wide, high neckline that follows the curve of the collarbone and ends in points on the shoulder seams.
- bois de vache — dried buffalo dung, used as fuel by Canadian and U.S. fur trappers in the 18th and 19th centuries.
- bombastically — (of speech, writing, etc.) high-sounding; high-flown; inflated; pretentious.
- bona vacantia — unclaimed goods
- boniface viii — original name Benedict Caetano. ?1234–1303, pope (1294–1303)
- boolean logic — (logic) A logic based on Boolean algebra.
- 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
- 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
- bowling match — a game of bowls
- brace and bit — a hand tool for boring holes, consisting of a cranked handle into which a drilling bit is inserted
- brace molding — keel1 (def 6).
- brachiosaurus — a dinosaur of the genus Brachiosaurus, up to 30 metres long: the largest land animal ever known
- brachycranial — brachycephalic
- braggadocious — boastful
- brain scanner — a machine used to perform brain scans
- brain-picking — the act of obtaining information or ideas by questioning another person.
- branch office — the local branch of a bank, shop, or other business
- branch rickey — (Wesley) Branch, 1881–1965, U.S. baseball executive.
- brassicaceous — belonging to the plant family Brassicaceae, an alternative name for the plant family Cruciferae.
- break dancing — a style of dance engaged in by youths, involving acrobatic movements, spinning about on the head or shoulders, etc.
- break service — to win a game in which an opponent is serving
- break the ice — to relieve shyness or reserve, esp between strangers
- breechloading — loaded at the breech.
- brilliant cut — a cut for gems
- brilliant-cut — a cut intended to enhance the brilliance of a gem with the least possible sacrifice of weight, characterized by a form resembling two pyramids set base to base, truncated so as to give a broad table and a very small culet, and having from 18 to 104 facets, 58 being typical.
- broca-aphasia — a type of aphasia caused by a lesion in Broca's area of the brain, characterized by misarticulated speech and lack of grammatical morphemes.
- broccoli raab — a plant (Brassica rapa ruvo) of the crucifer family with close clusters of small flowers and dark green, somewhat bitter leaves cooked as a vegetable
- broccoli rabe — a plant, Brassica rapa ruvo, of which the slightly bitter, dark-green leaves and clustered flower buds are eaten as a vegetable.
- buccaneerings — the characteristic actions of a buccaneer
- buck and wing — a boisterous tap dance, derived from Black and Irish clog dances
- buffalo chips — the dried dung of buffalo used as fuel, especially by early settlers on the western plains.
- bureaucratism — an official of a bureaucracy.
- bureaucratist — a believer in bureaucracy
- bureaucratize — to administer by or transform into a bureaucracy
- business card — A person's business card or their card is a small card which they give to other people, and which has their name and details of their job and company printed on it.
- business case — a briefcase or attaché case.
- butanoic acid — kind of acid
- butch haircut — a short haircut for men, similar to a crew cut.
- by contraries — contrary to what is expected
- cabbage aphid — a small, blue aphid, Brevicoryne brassicae, that feeds on cabbage and related plants.
- cabbage white — any large white butterfly of the genus Pieris, esp the Eurasian species P. brassicae, the larvae of which feed on the leaves of cabbages and related vegetables: family Pieridae
- cabbalistical — cabbalistic
- cabin cruiser — A cabin cruiser is a motor boat which has a cabin for people to live or sleep in.