12-letter words containing o, r, c, a, s
- avariciously — characterized by avarice; greedy; covetous.
- bachelorship — the state of being a bachelor; bachelorhood
- backcrossing — (genetics) The crossing of a hybrid with one of its parents or an individual genetically similar to its parent.
- backswordman — a person who uses a backsword.
- bacon-slicer — a machine for cutting bacon into slices
- bacteriostat — any substance that arrests the growth or reproduction of bacteria but does not kill them
- bad scran to — bad luck to
- barge course — the overhang of the gable end of a roof
- barodynamics — the branch of mechanics concerned with heavy structures
- basidiocarps — Plural form of basidiocarp.
- beachcombers — Plural form of beachcomber.
- 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 scoter — a scoter of Eurasia and North America, Melanitta nigra, the adult male of which is black.
- board school — (formerly) a school managed by a board elected by local ratepayers
- body scanner — a machine using X-rays and a computer, used in medicine to look for signs of disease, or in security operations to look for drugs, weapons, etc
- boot-scraper — a contraption consisting of an upright metal shape formerly placed outside some houses to enable people to scrape the mud from their boots before going in
- borosilicate — a salt of boric and silicic acids
- box lacrosse — a form of lacrosse played indoors, usually on a hockey rink with a wooden floor, between two teams of six players.
- brachycerous — (of insects) having short antennae
- braggadocios — empty boasting; bragging.
- brass-collar — unwaveringly faithful to a political party; voting the straight ticket: a brass-collar Democrat.
- broadcasting — Broadcasting is the making and sending out of television and radio programmes.
- broca's area — the region of the cerebral cortex of the brain concerned with speech; the speech centre
- bronchospasm — an abnormal contraction of the bronchi resulting in restriction of the airway
- bunco artist — a confidence trickster or con artist
- burseraceous — of, relating to, or belonging to the Burseraceae, a tropical family of trees and shrubs having compound leaves and resin or balsam in their stems. The family includes bdellium and some balsams
- cabbage rose — a rose, Rosa centifolia, with a round compact full-petalled head
- cabora bassa — the site on the Zambezi River in N Mozambique of the largest dam in southern Africa
- cabot strait — a channel in Canada, connecting the Gulf of St. Lawrence with the Atlantic Ocean. 68 miles (109 km) wide.
- cadaverously — In a cadaverous manner.
- calcareously — in a calcareous manner
- calibrations — Plural form of calibration.
- call to arms — a command to report for active military duty.
- calorescence — the absorption of radiation by a body, subsequently re-emitted at a higher frequency (lower wavelength)
- calorimeters — Plural form of calorimeter.
- calumniators — Plural form of calumniator.
- camelopardus — a faint extensive constellation in the N hemisphere close to Ursa Major and Cassiopeia
- caméra stylo — the use of the camera as a means of personal expression, esp as practised by some directors of the New Wave
- cameraperson — a camera operator
- can of worms — a complicated problem
- canine corps — a military or law enforcement body which uses dogs for the detection of explosives or drugs or for security, tracking, etc
- canorousness — The quality of being musical.
- cantankerous — Someone who is cantankerous is always finding things to argue or complain about.
- caparisoning — Present participle of caparison.
- cape sparrow — a sparrow, Passer melanurus, very common in southern Africa: family Ploceidae
- capriciously — subject to, led by, or indicative of a sudden, odd notion or unpredictable change; erratic: He's such a capricious boss I never know how he'll react.
- carbocations — Plural form of carbocation.
- carbohydrase — a digestive enzyme that breaks down carbohydrates through hydrolysis
- carbon brush — a small block of carbon used to convey current between the stationary and moving parts of an electric generator, motor, etc