12-letter words containing c, a, l, b, o
- black coffee — coffee with no milk, milk substitute, or cream added
- black cohosh — a plant of the ranunculaceous family, Cimicifuga racemosa, which is used as a natural alternative to hormone replacement therapy
- black comedy — a comedy dealing with an unpleasant situation in a pessimistic or macabre manner
- black copper — a regulus of 95-percent-pure copper, produced in a blast furnace by smelting oxidized copper ores.
- black cosmos — a garden plant, Cosmos diversifolius, of Mexico, having small, dahlialike tubers and solitary flower heads with red disk flowers and velvety, dark-red or purplish ray flowers.
- black forest — wooded mountain region in SW Germany
- black grouse — a large N European grouse, Lyrurus tetrix, the male of which has a bluish-black plumage and lyre-shaped tail
- black heroin — a very potent and addictive form of heroin that is dark-colored.
- black liquor — (in making wood pulp for paper) the liquor that remains after digestion.
- black locust — Also called false acacia, yellow locust. a North American tree, Robinia pseudoacacia, of the legume family, having pinnate leaves and clusters of fragrant white flowers.
- black poplar — a Eurasian tree, Populus nigra
- black powder — gunpowder as used in sports involving modern muzzleloading firearms
- black sapote — a tropical American tree, Diospyros digyna, related to the persimmon, having sweet, edible, green fruit that turns black when ripe.
- black scoter — a scoter of Eurasia and North America, Melanitta nigra, the adult male of which is black.
- black tongue — canine pellagra.
- black-coated — (esp formerly) (of a worker) clerical or professional, as distinguished from commercial or industrial
- blastocoelic — of or relating to the blastocoel
- blastomycete — any of a genus (Blastomyces) of yeastlike imperfect fungi that cause diseases in people and animals
- block caving — a method of mining a large block of ore by systematically undercutting so the ore will cave. Compare cave (def 5a).
- block heater — an electrically operated immersion heater fitted either to enter the water hose or the water jacket surrounding the cylinder block of a motor to warm the coolant in cold weather.
- 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.
- board school — (formerly) a school managed by a board elected by local ratepayers
- boghead coal — compact bituminous coal that burns brightly and yields large quantities of tar and oil upon distillation.
- boletic acid — fumaric acid.
- bombe glacée — a dessert of ice cream lined or filled with custard, cake crumbs, etc
- bonnyclabber — clotted or curdled milk
- borosilicate — a salt of boric and silicic acids
- 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.
- boudin blanc — a boiled sausage made with light-colored meat, as veal or chicken, and without blood
- boulder clay — an unstratified glacial deposit consisting of fine clay, boulders, and pebbles
- bounce flash — a flash lamp designed to produce a bounced flash.
- bowel cancer — cancer of the colon
- box lacrosse — a form of lacrosse played indoors, usually on a hockey rink with a wooden floor, between two teams of six players.
- brass-collar — unwaveringly faithful to a political party; voting the straight ticket: a brass-collar Democrat.
- breechloader — any gun loaded at the breech
- brown hackle — an artificial fly having a peacock herl body, golden tag and tail, and brown hackle.
- buccolingual — of or relating to the cheek and tongue.
- bullock cart — a cart pulled by one or two bullocks
- cabriole leg — a type of furniture leg, popular in the first half of the 18th century, in which an upper convex curve descends tapering to a concave curve
- cactoblastis — a moth, Cactoblastis cactorum of South America, that was introduced into Australia to act as a biological control on the prickly pear
- calibrations — Plural form of calibration.
- camphor ball — mothball
- cannonballed — Simple past tense and past participle of cannonball.
- cape buffalo — a large, black, nearly hairless, very fierce buffalo (Syncerus caffer) of South Africa, with horns joined at the bases to form a helmetlike structure
- capped elbow — a swelling of the elbow of a horse due to irritation caused by the hoof striking the elbow when lying down.
- carbocholine — carbachol.
- carbon black — a black finely divided form of amorphous carbon produced by incomplete combustion of natural gas or petroleum: used to reinforce rubber and in the manufacture of pigments and ink
- carbon cycle — the circulation of carbon between living organisms and their surroundings. Carbon dioxide from the atmosphere is synthesized by plants into plant tissue, which is ingested and metabolized by animals and converted to carbon dioxide again during respiration and decay
- carbon steel — steel whose characteristics are determined by the amount of carbon it contains