16-letter words containing a, c, r, o
- christian action — an inter-Church movement formed in 1946 to promote Christian ideals in society at large
- christmas factor — a protein implicated in the process of blood clotting, the lack of which causes Christmas disease
- chromatic number — (mathematics) The smallest number of colours necessary to colour the nodes of a graph so that no two adjacent nodes have the same colour. See also: four colour map theorem.
- chromatographies — Plural form of chromatography.
- chromium plating — plating, often for decorative effect, made of chromium
- chromolithograph — a picture produced by chromolithography
- chronic glaucoma — Ophthalmology. abnormally high fluid pressure in the eye, most commonly caused either by blockage of the channel through which aqueous humor drains (open-angle glaucoma or chronic glaucoma) or by pressure of the iris against the lens, which traps the aqueous humor (angle-closure glaucoma or acute glaucoma)
- cigarette holder — A cigarette holder is a narrow tube that you can put a cigarette into in order to hold it while you smoke it.
- circumambulation — The act of walking around something in a circle, especially for a ritual purpose.
- circumlocutional — Of or relating to circumlocution : circumlocutionary.
- circumnavigation — to sail or fly around; make the circuit of by navigation: to circumnavigate the earth.
- circumnavigatory — Pertaining to circumnavigation.
- citronella grass — a tropical Asian grass, Cymbopogon (or Andropogon) nardus, with bluish-green lemon-scented leaves
- city of aberdeen — a council area in NE Scotland, established in 1996. Pop: 206 600 (2003 est). Area: 186 sq km (72 sq miles)
- civil air patrol — a voluntary organization performing emergency services, as assisting the U.S. Air Force on search missions, and offering aerospace-education and youth programs: founded 1941. Abbreviation: CAP.
- class background — a person's background with reference to social class
- cleaning product — a detergent or other household cleaner
- clearance volume — The clearance volume is the volume remaining above the piston of an engine when it reaches top dead center.
- clermont-ferrand — a city in S central France: capital of Puy-de-Dôme department; industrial centre. Pop: 140 957 (2011)
- cloak-and-dagger — A cloak-and-dagger activity is one which involves mystery and secrecy.
- cloak-and-suiter — a manufacturer or seller of clothing.
- cloakroom ticket — a ticket given to someone who checks a coat or other personal item into a cloakroom and which is used to redeem that item at a later period
- cloistered vault — a vault having the form of a number of intersecting coves.
- closing argument — In a court case, a lawyer's closing argument is their final speech, in which they give a summary of their case.
- co-determination — a system of industrial management in which workers share responsibility for the operation of a company, as through elected representation on a corporate supervisory board
- coadministration — Joint administration.
- cobra de capello — a cobra, Naja tripudians, that has ringlike markings on the body and exists in many varieties in S and SE Asia
- cochlear implant — a device that stimulates the acoustic nerve in the inner ear in order to produce some form of hearing in people who are deaf from inner ear disease
- code of practice — A code of practice is a set of written rules which explains how people working in a particular profession should behave.
- coleridge-taylor — Samuel. 1875–1912, British composer, best known for his trilogy of oratorios Song of Hiawatha (1898–1900)
- collaborationism — The act of collaborating, especially with an enemy.
- collaborationist — A collaborationist government or individual is one that helps or gives support to the enemy during the war.
- collared peccary — a piglike artiodactyl mammal, Tayassu tajacu, of forests of southern North America, Central and South America: family Tayassuidae
- college graduate — a student who has recently graduated from college
- colles' fracture — a fracture of the radius just above the wrist, with backward and outward displacement of the hand
- colorado plateau — a plateau in the SW United States, in N Arizona, NW New Mexico, S Utah, and SW Colorado: location of the Grand Canyon.
- colorado springs — a city and resort in central Colorado. Pop: 370 448 (2003 est)
- colorimetrically — (analytical chemistry) By means of colorimetry or by using a colorimeter.
- column extractor — A column extractor is a tall vessel in which one liquid removes something from another liquid using physical contact.
- combination door — an outside door having a frame into which different types of panels can be inserted, as a screen for summer or storm sash for winter.
- combination drug — a medication comprised of set dosages of two or more separate drugs.
- combination room — (at Cambridge University) a common room
- come/bring alive — If a story or description comes alive, it becomes interesting, lively, or realistic. If someone or something brings it alive, they make it seem more interesting, lively, or realistic.
- commensurability — The quality of being commensurable or commensurate.
- commensurateness — The state or quality of being commensurate.
- commercial break — A commercial break is the interval during a commercial television programme, or between programmes, during which advertisements are shown.
- commercial paper — a short-term negotiable document, such as a bill of exchange, promissory note, etc, calling for the transference of a specified sum of money at a designated date
- commercial pilot — an airplane pilot licensed to transport passengers, goods, etc.
- commodity dollar — the unit of a proposed system of currency, that would have a fluctuating gold value determined at regular intervals on the basis of an official index of the prices of key commodities
- common logarithm — a logarithm to the base ten. Usually written log or log10