15-letter words containing a, c, u
- black mountains — a mountain range running from N Monmouthshire and SE Powys (Wales) to SW Herefordshire (England). Highest peak: Waun Fach, 811 m (2660 ft)
- blackberry bush — a bush on which blackberries grow
- blockade runner — a person, ship etc that tries to carry goods through a blockade
- blockade-runner — a ship or person that passes through a blockade.
- blue cattle dog — an Australian breed of dog with a bluish coat, developed for herding cattle
- blueback salmon — sockeye salmon.
- book of account — a book to keep accounts in; ledger
- brachial plexus — a network of nerves in the armpits and neck, innervating the shoulders, arms, and hands.
- brachystomatous — having a short proboscis, as certain insects.
- brake parachute — a parachute attached to the rear of a vehicle and opened to assist braking
- branchial pouch — one of a series of rudimentary outcroppings of the inner pharyngeal wall, corresponding to the branchial grooves on the surface.
- branching rules — rules that are used to break down a complex problem into several smaller problems
- branchiostegous — branchiostegal.
- breach of trust — a violation of duty by a trustee or any other person in a fiduciary position
- bronchial tubes — the bronchi or their smaller divisions
- brush discharge — a slightly luminous electrical discharge between points of high charge density when the charge density is insufficient to cause a spark or around sharp points on a highly charged conductor because of ionization of air molecules in their vicinity
- brushback pitch — a fast ball deliberately thrown at or too near a batter's head
- brussels carpet — a worsted carpet with a heavy pile formed by uncut loops of wool on a linen warp
- bucket elevator — a chain of buckets for raising liquids or materials to a higher level
- buckinghamshire — a county in SE central England, containing the Vale of Aylesbury and parts of the Chiltern Hills: the geographic and ceremonial county includes Milton Keynes, which became an independent unitary authority in 1997. Administrative centre: Aylesbury. Pop (excluding Milton Keynes): 478 000 (2003 est). Area (excluding Milton Keynes): 1568 sq km (605 sq miles)
- buffalo currant — an ornamental shrub, Ribes odoratum, of the central U.S., having showy, drooping clusters of fragrant yellow flowers and edible black fruit.
- bullock's heart — the large, edible fruit of a tropical American tree, Annona reticulata.
- bullock's-heart — the large, edible fruit of a tropical American tree, Annona reticulata.
- buryat republic — a constituent republic of SE central Russia, on Lake Baikal: mountainous, with forests covering over half the total area. Capital: Ulan-Ude. Pop: 981 000 (2002). Area: 351 300 sq km (135 608 sq miles)
- business casual — a style of casual clothing worn by businesspeople at work instead of more formal attire
- butterfly chair — a lightweight chair consisting of a piece of canvas, leather, etc. slung from a framework of metal bars
- buy-back option — the option for a company to buy some or all of its shares from an investor, who acquired them by putting venture capital into the company when it was formed
- by all accounts — according to everyone
- cabbage lettuce — any of several varieties of lettuce that have roundish flattened heads resembling cabbages
- cabinet picture — a small easel painting, usually under 3 feet (0.9 meters) in width and formerly exhibited in a cabinet or special room.
- cabinet pudding — a steamed suet pudding containing dried fruit
- cache la poudre — a river in N Colorado, flowing N and E to the South Platte River. 126 miles (203 km) long.
- cactus geranium — a plant, Pelargonium echinatum, of the geranium family, native to southern Africa, having prickly stipules and white or reddish flowers.
- cadmium sulfate — a water-soluble compound, CdSO 4 , of colorless crystals, used as an antiseptic.
- cadmium sulfide — a toxic pigment, CdS, varying from lemon yellow (cadmium yellow) to yellowish orange (cadmium orange) and used in paints, photocells, semiconductors, etc.
- calabash nutmeg — a tropical African shrub, Monodora myristica, whose oily aromatic seeds can be used as nutmegs: family Annonaceae
- calcareous clay — soil with high limestone content
- calcareous tufa — tufa
- calcium blocker — any of a group of drugs that prevent the influx of calcium into excitable tissues such as smooth muscle of the heart or arterioles, used in the treatment of angina, hypertension, and certain arrhythmias.
- calcium carbide — a grey salt of calcium used in the production of acetylene (by its reaction with water) and calcium cyanamide. Formula: CaC2
- calcium citrate — the calcium salt of citric acid, used as a food additive
- calcium cyanide — a white or grayish-black compound, Ca(CN) 2, used as an insecticide and rodent poison.
- calcium lactate — a salt of lactic acid. Formula: Ca(C3H5O3)2·5H2O
- calcium nitrate — a white, deliquescent solid, Ca(NO 3) 2 , used chiefly in the manufacture of fertilizers, fireworks, matches, and explosives.
- calcium oxalate — a white, crystalline powder, CaC 2 O 4 , insoluble in water, used in making oxalic acid.
- calcium sulfate — Calcium sulfate is a white crystalline salt, used as a tablet diluent.
- calcium sulfide — a yellow to light-gray, slightly water-soluble powder, CaS, having the odor of rotten eggs when moist: used chiefly in the preparation of luminous paint, hydrogen sulfide, and as a depilatory in cosmetics.
- calculated risk — a chance of failure, the probability of which is estimated before some action is undertaken.
- california gull — a large gull, Larus californicus, of the western U.S.
- call to account — to insist on explanation