12-letter words containing a, b, i
- bioturbation — the stirring of sediment by organisms
- biparentally — from a biparental point of view
- bipropellant — a rocket propellant consisting of two substances, usually a fuel and an oxidizer
- birch family — the plant family Betulaceae, characterized by deciduous trees having simple serrate leaves, male flowers in drooping catkins, female flowers in short clusters, and one-seeded nuts, and including the alder, birch, hazel, and hornbeam.
- bird fancier — a person who keeps, breeds, or sells birds
- bird watcher — a person who identifies and observes birds in their natural habitat as a recreation.
- bird-brained — silly; stupid
- bird-watcher — A bird-watcher is a person whose hobby is watching and studying wild birds in their natural surroundings.
- 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 family — one's biological parents and siblings, as contrasted with one's adoptive family.
- birth father — a biological mother (birth mother) or biological father (birth father) a biological parent.
- birth parent — a biological mother (birth mother) or biological father (birth father) a biological parent.
- birth trauma — an emotional shock caused by being born.
- birthday boy — the boy or man whose birthday is being celebrated
- biscay green — a yellowish green.
- biscayne bay — an inlet of the Atlantic Ocean, on the SE coast of Florida, separating the cities of Miami and Miami Beach.
- biscuit ware — unglazed earthenware
- bishop's-cap — any of a genus (Mitella) of small woodland plants of the saxifrage family, with two-lobed seedcases shaped like a bishop's hat
- bismarck sea — an arm of the Pacific Ocean north of New Britain and north-east of New Guinea
- biting mania — an epidemic in which people have a compulsion to bite others, as in 15th-century Germany, Italy, and the Netherlands.
- biting stage — the second part of the oral phase of psychosexual development, approximately 8 to18 months of age, during which a child has the urge to bite or chew objects.
- bitter aloes — a bitter purgative drug made from the leaves of several species of aloe
- bitter apple — colocynth
- bitter lakes — two lakes, the Great Bitter Lake and Little Bitter Lake in NE Egypt: part of the Suez Canal
- black acacia — a tall Australian tree, Acacia melanoxylon, of the legume family, having cream-yellow flowers and yielding a very light wood.
- black africa — Black Africa is the part of Africa to the south of the Sahara Desert.
- black friday — the day after the US Thanksgiving Day in late November, regarded as the start of the Christmas shopping season
- black heroin — a very potent and addictive form of heroin that is dark-colored.
- black knight — a person or firm that makes an unwelcome takeover bid for a company
- black liquor — (in making wood pulp for paper) the liquor that remains after digestion.
- black medick — a small European leguminous plant, Medicago lupulina, with trifoliate leaves, small yellow flowers, and black pods
- black muslim — a member of the Black Muslims
- black prince — Edward2 (Prince of Wales)
- black-figure — pertaining to or designating a style of vase painting developed in Greece in the 7th and 6th centuries b.c., chiefly characterized by silhouetted figures painted in black slip on a red clay body, details incised into the design, and a two-dimensional structure of form and space.
- blackbirding — a common European thrush, Turdus merula, the male of which is black with a yellow bill.
- blandishment — the act of blandishing; cajolery
- blastocoelic — of or relating to the blastocoel
- blastulation — the process of blastula formation
- blatherskite — a talkative silly person
- 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
- blazing star — a North American liliaceous plant, Chamaelirium luteum, with a long spike of small white flowers
- bletheration — nonsense!
- blind casing — (in a box window frame) a rough framework to which the trim is secured.
- blind flange — a disk for closing the end of a pipe, having holes for bolting it to a flange.
- bliss carman — (William) Bliss, 1861–1929, Canadian poet and journalist in the U.S.
- blister pack — a type of packet in which small items are displayed and sold, consisting of a transparent dome of plastic or similar material mounted on a firm backing such as cardboard
- block caving — a method of mining a large block of ore by systematically undercutting so the ore will cave. Compare cave (def 5a).
- block island — an island off the coast of and a part of Rhode Island, at the E entrance to Long Island Sound.
- block signal — a fixed railroad signal governing the movements of trains entering and using a given section of track.
- blood spavin — a disease of the hock joint of horses in which enlargement occurs because of collected fluids (bog spavin) bony growth (bone spavin) or distention of the veins (blood spavin)