12-letter words containing c, l, o
- bird colonel — a full colonel in the US Army
- black bottom — a dance of the late 1920s that originated in America, involving a sinuous rotation of the hips
- black bryony — a climbing herbaceous Eurasian plant, Tamus communis, having small greenish flowers and poisonous red berries: family Dioscoreaceae
- black canyon — a canyon of the Colorado River between Arizona and Nevada: site of Boulder Dam.
- 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
- blind corner — a corner where the view of the road ahead is completely obscured or very restricted
- 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 letter — a plain capital letter
- block signal — a fixed railroad signal governing the movements of trains entering and using a given section of track.
- block system — the system whereby a railway is divided up into separate sections of track where only one train can travel at a time
- block voting — voting using block votes
- blockbusting — A blockbusting film or book is one that is very successful, usually because it is very exciting.
- blocked shoe — a dancing shoe with a stiffened toe that enables a ballet dancer to dance on the tips of the toes
- bloodcurdler — something causing great fright or horror: a bloodcurdler of a mystery novel.
- bloodsucking — any animal that sucks blood, especially a leech.
- blue succory — a composite garden plant, Catananche caerulea, of southern Europe, having very hairy leaves and blue flower heads, used by the ancients as a love potion.
- bluestocking — A bluestocking is an intellectual woman.
- board school — (formerly) a school managed by a board elected by local ratepayers
- body politic — The body politic is all the people of a nation when they are considered as a complete political group.
- boghead coal — compact bituminous coal that burns brightly and yields large quantities of tar and oil upon distillation.
- boletic acid — fumaric acid.
- bolshevistic — of, relating to, or characteristic of Bolshevists or Bolshevism.
- bombe glacée — a dessert of ice cream lined or filled with custard, cake crumbs, etc
- bonnyclabber — clotted or curdled milk
- bootylicious — sexually attractive, esp with curvaceous buttocks
- borosilicate — a salt of boric and silicic acids
- borscht belt — (sometimes initial capital letters) the hotels of the predominantly Jewish resort area in the Catskill Mountains, many of them offering nightclub or cabaret entertainment.
- 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.
- boucherville — a town in S Quebec, in E Canada, near Montreal, on the St. Lawrence.
- boudin blanc — a boiled sausage made with light-colored meat, as veal or chicken, and without blood
- bouillon cup — a small, bowl-shaped vessel, with two handles, in which bouillon is served.