13-letter words containing a, s, l, o
- clair-obscure — chiaroscuro.
- clamorousness — The state or quality of being clamorous.
- clapperboards — Plural form of clapperboard.
- clare-obscure — chiaroscuro.
- class society — a society in which class distinctions are influential
- claustrophobe — a person who suffers from claustrophobia.
- clavichordist — Someone who plays the clavichord.
- clearinghouse — If an organization acts as a clearinghouse, it collects, sorts, and distributes specialized information.
- cleistogamous — having small, unopened, self-pollinating flowers, usually in addition to the showier flowers
- cleistothecia — (in certain ascomycetous fungi) a closed, globose ascocarp from which the ascospores are released only by its rupture or decay.
- cleptomaniacs — kleptomania.
- cliff swallow — an American swallow, Petrochelidon pyrrhonota, that has a square-tipped tail and builds nests of mud on cliffs, walls, etc
- climatologist — A climatologist is someone who studies climates.
- clistocarpous — Mycology. having cleistothecia.
- close at hand — lying in the near future or vicinity; nearby or imminent.
- close company — a company under the control of its directors or fewer than five independent participants
- close harmony — a type of singing in which all the parts except the bass lie close together and are confined to the compass of a tenth
- close-at-hand — lying in the near future or vicinity; nearby or imminent.
- close-grained — (of wood) dense or compact in texture
- closed season — The closed season is the period of the year when it is prohibited to kill certain types of animal or fish.
- closed stance — a batting stance in which the front foot is positioned closer to the inside of the batter's box than the back foot.
- clothesbasket — a basket for holding and carrying laundry.
- coachbuilders — Plural form of coachbuilder.
- coal industry — a branch of commercial enterprise concerned with the discovery and mining of coal
- coal measures — a series of coal-bearing rocks formed in the upper Carboniferous period; the uppermost series of the Carboniferous system
- coalesced sum — (theory) (Or "smash sum") In domain theory, the coalesced sum of domains A and B, A (+) B, contains all the non-bottom elements of both domains, tagged to show which part of the sum they come from, and a new bottom element. D (+) E = { bottom(D(+)E) } U { (0,d) | d in D, d /= bottom(D) } U { (1,e) | e in E, e /= bottom(E) } The bottoms of the constituent domains are coalesced into a single bottom in the sum. This may be generalised to any number of domains. The ordering is bottom(D(+)E) <= v For all v in D(+)E (i,v1) <= (j,v2) iff i = j & v1 <= v2 "<=" is usually written as LaTeX \sqsubseteq and "(+)" as LaTeX \oplus - a "+" in a circle.
- coastal plain — a plain extending along a coast.
- coasting lead — a lead used in sounding depths of from 20 to 60 fathoms.
- coatzacoalcos — city in EC Mexico, in Veracruz state: pop. 233,000
- cobaltiferous — containing cobalt
- cobbler's wax — a resin used for waxing thread
- cocarboxylase — thiamine pyrophosphate
- coccobacillus — a spherelike bacillus.
- cocos islands — a group of 27 coral islands in the Indian Ocean, southwest of Java: a Territory of Australia since 1955. Pop: 596 (2010). Area: 13 sq km (5 sq miles)
- coelenterates — Plural form of coelenterate.
- coleman stove — a portable kerosene camp stove
- collaborators — to work, one with another; cooperate, as on a literary work: They collaborated on a novel.
- collateralise — Alternative spelling of collateralize.
- colleagueship — workplace companionship
- collectorates — Plural form of collectorate.
- collieshangie — a quarrel
- collisionally — in the manner of a collision or collisions
- colloquialism — A colloquialism is a colloquial word or phrase.
- colloquialist — a skilled speaker
- colonialistic — of or relating to colonialism
- colorfastness — The characteristic of being colorfast.
- colostomy bag — a bag that is attached to the surgical opening from the colon onto the surface of the body and into which faecal matter passes
- colourisation — Alternative spelling of colorization.
- colposcopical — of or relating to the colposcope
- comfortablest — Superlative form of comfortable.