15-letter words containing a, c, r, o, t
- black snakeroot — a tall bugbane, Cimicifuga racemosa, of the buttercup family, of eastern North America, having thin, tapering, toothed or deeply cut leaflets and branched clusters of small, white flowers.
- boa constrictor — A boa constrictor is a large snake that kills animals by wrapping itself round their bodies and squeezing them to death. Boa constrictors are found mainly in South and Central America and the West Indies.
- board-certified — A doctor who is board-certified has passed tests and meets the standards of a board of specialists in their area of medicine.
- boston massacre — an outbreak (1770) in Boston against British troops, in which a few citizens were killed
- brachistochrone — the curve between two points through which a body moves under the force of gravity in a shorter time than for any other curve; the path of quickest descent
- brachystomatous — having a short proboscis, as certain insects.
- branchiostegous — branchiostegal.
- breach of faith — a violation of good faith, confidence, or trust; betrayal: To abandon your friends now would be a breach of faith.
- breach of trust — a violation of duty by a trustee or any other person in a fiduciary position
- breeder reactor — a type of nuclear reactor that produces more fissionable material than it consumes
- bristol channel — an inlet of the Atlantic, between S Wales and SW England, merging into the Severn estuary. Length: about 137 km (85 miles)
- britneyfication — the effect on clothes and fashions of following the revealing styles favoured by the US pop singer Britney Spears (born 1981)
- broadcast storm — (networking) A broadcast on a network that causes multiple hosts to respond by broadcasting themselves, causing the storm to grow exponentially in severity. See network meltdown.
- bronchial tubes — the bronchi or their smaller divisions
- bucket elevator — a chain of buckets for raising liquids or materials to a higher level
- 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.
- cadmean victory — a victory won with great losses to the victors
- cairngorm-stone — smoky quartz.
- calcareous tufa — tufa
- caldecott award — an annual award in the U.S. for an outstanding illustrated juvenile book.
- calendarization — the process of calendarizing
- call-out charge — a set amount charged for a repairman to come to one's house, or to a broken-down vehicle, which is added to the cost of the actual repair
- camelot library — (library)
- camera operator — a person who operates a film or television camera
- camphorated oil — a liniment consisting of camphor and peanut oil, used as a counterirritant
- canisterization — the process of putting (something) into a canister or canisters
- canning factory — a building or group of buildings containing a plant assembly where food is sealed in cans or tins to preserve it
- cannonball tree — a South American tree, Couroupita guianensis, bearing round, woody-husked fruit whose shells are used to make containers and utensils.
- capillarization — The formation and development of a network of capillaries to a part of the body; it is increased by aerobic exercise.
- car transporter — a vehicle for carrying automobiles
- carbazotic acid — picric acid.
- carbon fixation — the process by which plants assimilate carbon from carbon dioxide in the atmosphere to form metabolically active compounds
- carcinogenicity — any substance or agent that tends to produce a cancer.
- cardinal points — the four main points of the compass: north, south, east, and west
- carpometacarpal — Anatomy. of or relating to the carpus and the metacarpus.
- carpometacarpus — a bone in the wing of a bird that consists of the metacarpal bones and some of the carpal bones fused together
- carry one's bat — (of an opening batsman) to reach the end of an innings without being dismissed
- carry the torch — If you say that someone is carrying the torch of a particular belief or movement, you mean that they are working hard to ensure that it is not forgotten and continues to grow stronger.
- cartesian doubt — willful suspension of all interpretations of experience that are not absolutely certain: used as a method of deriving, by elimination of such uncertainties, axioms upon which to base theories.
- cartier-bresson — Henri (ɑ̃ri). 1908–2004, French photographer
- cassette memory — a removable magnetic tape cartridge that stores data and programs.
- cast around for — If you cast around for something or cast about for it, you try to find it or think of it.
- cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
- cast-iron plant — any of several plants belonging to the genus Aspidistra, of the lily family, native to eastern Asia, especially A. eliator, having large evergreen leaves often striped with white, and grown as a houseplant.
- castanospermine — a substance obtained from the Australian chestnut or black bean tree
- casters-up mode — [IBM, probably from slang belly up] Yet another synonym for "broken" or "down". Usually connotes a major failure. A system (hardware or software) which is "down" may be already being restarted before the failure is noticed, whereas one which is "casters up" is usually a good excuse to take the rest of the day off (as long as you're not responsible for fixing it).
- castner process — a process for extracting sodium from sodium hydroxide, devised by Hamilton Young Castner (1858–98)
- castrametations — Plural form of castrametation.