13-letter words containing a, b, l, c, t
- ballet dancer — a man or woman who takes part in ballet dancing, usually professionally
- ballet school — a school where professional ballet dancers are trained
- ballistically — of or relating to ballistics.
- baltic shield — the wide area of ancient rock in Scandinavia
- baltic states — the republics of Estonia, Latvia, and Lithuania, which became constituent republics of the former Soviet Union in 1940, regaining their independence in 1991
- barcoo salute — a movement of the hand to brush flies away from the face
- baritone clef — an F clef locating F below middle C on the third line of the staff.
- baroclinicity — a common state of fluid stratification in which surfaces of constant pressure and others of constant density are not parallel but intersect.
- barrel cactus — any of several large, cylindrical, ribbed, spiny cacti of the genera Echinocactus and Ferocactus.
- barytocalcite — a mineral, double carbonate of calcium and barium, CaCO 3 ⋅BaCO 3 , usually found in veins of lead minerals.
- baseline cost — the projected cost for an undertaking at the time it is budgeted
- basket clause — an all-inclusive or comprehensive clause in a contract
- bass clarinet — a clarinet with the lowest range, in the octave below the B-flat clarinet
- bathylimnetic — (of an organism) living in the depths of lakes and marshes
- battle jacket — a closefitting jacket reaching to the waist
- battlecruiser — A large warship of a type built in the early 20th century, carrying similar armament to a battleship but faster and more lightly armored.
- benedictional — a book of benedictions or blessings
- beneficential — relating to beneficence
- benthopelagic — relating to species living at the bottom of the sea
- benzalacetone — benzylidene acetone.
- beta particle — a high-speed electron or positron emitted by a nucleus during radioactive decay or nuclear fission
- beta-blocking — acting to inhibit the activity of the nerves that are stimulated by adrenaline
- bibliothecary — a librarian
- bicentennials — pertaining to or in honor of a 200th anniversary: bicentennial celebration; a bicentennial exposition.
- biconditional — (of a proposition) asserting that the existence or occurrence of one thing or event depends on, and is dependent on, the existence or occurrence of another, as “A if and only if B.”.
- bicontinental — of, on, or involving two continents: a bicontinental survey.
- biculturalism — the characteristics, or policy, of a two-cultured society
- bidenticulate — having two small teeth or toothlike processes.
- bidirectional — (of a printhead) capable of printing from left to right and from right to left
- bimetallistic — relating to bimetallism
- bioaccumulate — (of substances, esp toxins) to build up within the tissues of organisms
- biocompatible — not rejected by the body
- bioelectrical — relating to electrical current generated by biological activity
- birectangular — having two right angles.
- bisectionally — from a bisectional point of view
- bl lac object — an extremely compact violently variable form of active galaxy
- black and tan — a mixture of stout or porter and ale
- black country — a district in the English Midlands, around Birmingham: so called from the soot and grime produced by the many local industries.
- black currant — the small, round, blackish, edible fruit of a widely cultivated shrub, Ribes nigrum, of the saxifrage family.
- black margate — a grayish grunt, Anisotremus surinamensis, of the Atlantic Ocean from Florida to Brazil.
- black mustard — a Eurasian plant, Brassica (or Sinapsis) nigra, with clusters of yellow flowers and pungent seeds from which the condiment mustard is made: family Brassicaceae (crucifers)
- black panther — (in the US) a member of a militant Black political party (1965–82) founded to end the political dominance of White people
- black quarter — blackleg (def 1).
- 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
- black studies — a program of studies in black history and culture offered by a school or college, often including Afro-American history and black literature.
- black tracker — an Aboriginal tracker working for the police
- black treacle — molasses
- black vulture — the Eurasian vulture, Aegypius monachus, of the family Accipitridae
- black-and-tan — (of a dog) of a black color with tan markings above the eyes and on the muzzle, chest, legs, feet, and breech.
- black-hearted — evil, malicious, or wicked