12-letter words containing a, c, u, s, o
- autochthones — Alternative spelling of autochthons.
- autodestruct — likely to or possessing the power to destroy or obliterate itself or its possessor
- autoeciously — in an autoecious manner
- autorickshaw — (in India) a light three-wheeled vehicle driven by a motorcycle engine
- autotheistic — Self-worshiping; prideful in the extreme.
- avariciously — characterized by avarice; greedy; covetous.
- backsolution — The process or result of backsolving.
- balsamaceous — any of various fragrant exudations from certain trees, especially trees of the genus Commiphora, as balm-of-Gilead. Compare balm (def 1).
- barge course — the overhang of the gable end of a roof
- bioacoustics — the study of animals' use of sound
- black grouse — a large N European grouse, Lyrurus tetrix, the male of which has a bluish-black plumage and lyre-shaped tail
- 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.
- bombacaceous — of, relating to, or belonging to the Bombacaceae, a family of tropical trees, including the kapok tree and baobab, that have very thick stems, often with water-storing tissue
- bounce flash — a flash lamp designed to produce a bounced flash.
- brachycerous — (of insects) having short antennae
- 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
- cacophonious — cacophonous
- cadaverously — In a cadaverous manner.
- cadent house — any of the four houses that precede the angles: the third, sixth, ninth, and twelfth houses, which correspond, respectively, to neighborhood and relatives, work and health, philosophy and foreign travel, and secret matters and service to others.
- calamitously — In a calamitous manner.
- calcareously — in a calcareous manner
- calculations — Plural form of calculation.
- calumniators — Plural form of calumniator.
- calumniously — in a calumnious manner
- calycoideous — calycoid
- camelopardus — a faint extensive constellation in the N hemisphere close to Ursa Major and Cassiopeia
- canorousness — The quality of being musical.
- cantankerous — Someone who is cantankerous is always finding things to argue or complain about.
- cape sounion — Cape, a cape in E central Greece, SE of Athens, at the tip of the Attica peninsula, in W Aegean Sea.
- capillaceous — having numerous filaments resembling hairs or threads
- 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.
- captiousness — The state of being captious.
- carbon brush — a small block of carbon used to convey current between the stationary and moving parts of an electric generator, motor, etc
- carbonaceous — of, resembling, or containing carbon
- carnivourous — Misspelling of carnivorous.
- carpophagous — feeding on fruit
- cash account — an account with a brokerage which stipulates that the client pays in full for any transactions, rather than being extended credit
- cash journal — cashbook.
- castor sugar — finely ground or powdered sugar.
- catacoustics — the branch of acoustics dealing with echoes and reflected sounds
- cater-cousin — a close friend
- caught short — having a sudden need to urinate or defecate
- cauliflowers — Plural form of cauliflower.
- causationism — the theory of universal causation
- causationist — a person who believes in the theory of universal causation
- caustic soda — Caustic soda is a powerful chemical substance used to make strong soaps and clean drains.
- cautiousness — showing, using, or characterized by caution: a cautious man; To be cautious is often to show wisdom.
- cedrelaceous — resembling or having the characteristics of a citron fruit
- chaetiferous — having bristles