13-letter words containing a, n, o, r
- certification — a document attesting the truth of a fact or statement
- ceruloplasmin — a protein responsible for copper detoxification, found in the blood
- chain reactor — reactor (def 4).
- chamber organ — a small compact organ used esp for the authentic performance of preclassical music
- chandernagore — a port in E India, in S West Bengal on the Hooghly River: a former French settlement (1686–1950). Pop: 162 166 (2001)
- changing room — A changing room is a room where you can change your clothes and usually have a shower, for example at a sports centre.
- chaperoneship — State or position of chaperone.
- charing cross — a district of London, in the city of Westminster: the modern cross (1863) in front of Charing Cross railway station replaces the one erected by Edward I (1290), the last of twelve marking the route of the funeral procession of his queen, Eleanor
- charlottetown — a port in SE Canada, capital of the province of Prince Edward Island. Pop: 34 562 (2011)
- charnel house — A charnel house is a place where the bodies and bones of dead people are stored.
- chart-topping — very popular; coming top in the charts
- cheiromantist — A chiromancer.
- chiromantical — Of or pertaining to chiromancy.
- chloroacetone — a colorless, lachrymatory, poisonous liquid, C 3 H 5 ClO, used chiefly in organic synthesis and in the manufacture of insecticides and perfumes.
- chloromethane — methyl chloride.
- cholangiogram — an X-ray of the bile duct performed after administering dye into the ducts that shows up on the X-ray
- chondromatous — a benign cartilaginous tumor or growth.
- chromaticness — the attribute of colour that involves both hue and saturation
- chronographic — a timepiece fitted with a recording device, as a stylus and rotating drum, used to mark the exact instant of an occurrence, especially in astronomy.
- chronological — If things are described or shown in chronological order, they are described or shown in the order in which they happened.
- chronotherapy — an endeavour to readjust the body clock to enable a person to waken earlier by going to sleep later and later every day until the required waking hour is achieved
- cicatrization — Physiology. to heal by inducing the formation of a cicatrix.
- ciceronianism — imitation of the style of Cicero, especially as practiced by some writers and orators during the Renaissance.
- cinchona bark — the dried bark of any of a cinchona tree, which yields quinine and other medicinal alkaloids
- cinema goers' — filmgoer.
- cinematograph — a combined camera, printer, and projector
- cinnamon bear — a reddish-brown variety of the American black bear
- cinnamon fern — a large, New World fern (Osmunda cinnamomea, family Osmundaceae) having sterile green fronds and other fronds that bear spores and turn a cinnamon color as the spores mature
- ciprofloxacin — a broad-spectrum antibiotic used against Gram-negative bacteria. It is effective against anthrax
- citation form — the spoken form a word has when produced in isolation, such as when cited for purposes of illustration, as distinguished from the form it would have when produced in the normal stream of speech.
- clairvoyantly — In a clairvoyant way; by means of clairvoyance.
- clamorousness — The state or quality of being clamorous.
- clarification — to make (an idea, statement, etc.) clear or intelligible; to free from ambiguity.
- claymore mine — an antipersonnel mine designed to produce a direction-guided, fan-shaped pattern of fragments.
- cleaner tooth — a saw tooth for cleaning loose chips from a kerf.
- clear-coating — an automotive painting technique in which a coating of clear lacquer or other synthetic liquid is applied over the base color to enhance the shine and durability of the paint.
- clearing loan — a bank loan to finance the purchase of securities which is repayable within the calendar day on which it is made.
- clearinghouse — If an organization acts as a clearinghouse, it collects, sorts, and distributes specialized information.
- cliometrician — An expert at cliometrics.
- 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-grained — (of wood) dense or compact in texture
- co-ordination — Co-ordination means organizing the activities of two or more groups so that they work together efficiently and know what the others are doing.
- coal industry — a branch of commercial enterprise concerned with the discovery and mining of coal
- coal merchant — a person engaged in the purchase and sale of coal for profit
- coarsegrained — having a coarse texture
- coat-trailing — provocative or contentious writing, speech, behavior, etc.
- cocarcinogens — Plural form of cocarcinogen.
- cochairperson — a person who cochairs an organization
- cockney bream — a young snapper fish
- coconspirator — a fellow conspirator