12-letter words containing a, c, o, r, n
- chondrostian — relating to the class Chondrostei of fish with fin rays
- chord change — a movement from one chord to another
- chota nagpur — a plateau in E India, mainly in Jharkhand state since 2000: forested, with rich mineral resources and much heavy industry; produces chiefly lac (world's leading supplier), coal (half India's total output), and mica
- christophany — an appearance or emergence of Christ following his crucifixion
- chromonemata — a chromosome thread that is relatively uncoiled at early prophase but assumes a spiral form at metaphase.
- chronographs — Plural form of chronograph.
- chronography — an arrangement of past events
- chronophobia — Fear of the passing of time, or more generally of time itself.
- chrysophanol — (organic compound) A chemical compound found in rhubarb.
- chukot range — mountain range in NE Siberia: highest peak, c. 7,500 ft (2,286 m)
- circulations — Plural form of circulation.
- clairvoyance — the alleged power of perceiving things beyond the natural range of the senses
- clairvoyancy — the faculty of clairvoyance
- clairvoyants — Plural form of clairvoyant.
- clangorously — In a clangorous manner; ringingly.
- clapboarding — Present participle of clapboard.
- clara barton — Clara, 1821–1912, U.S. philanthropist who organized the American Red Cross in 1881.
- clarion call — A clarion call is a strong and emotional appeal to people to do something.
- claustration — the act of confining to a small space (usually a cloister)
- clayton fern — a tall fern, Osmunda claytoniana, of eastern North America and eastern Asia, having an interruption of growth in the center of some fronds.
- clean a room — If you clean a room, you make the inside of it and the furniture in it free from dirt and dust.
- clomipramine — A tricyclic, heterocyclic drug used to treat depression, anxiety and obsessive-compulsive disorder.
- closegrained — having a fine, compact grain or texture
- cloud banner — banner cloud.
- co-ordinator — a person or thing that coordinates.
- co-parenting — a divorced or separated parent who shares equally with the other parent in the custody and care of a child.
- coacervation — a reversible, emulsoid stage existing between the sol and gel formations, in which the addition of a third substance causes the separation of the sol into two immiscible liquid phases: an essential stage in the formation of proteins, antibodies, etc.
- coal-burning — fuelled by burning coal
- coarse grain — granularity
- coast ranges — series of mountain ranges along the W coast of North America, extending from Alas. to Baja California: highest peak, Mt. Logan
- coat protein — any protein that is a constituent of the capsid of a virus.
- cobalt green — a medium, yellowish-green color.
- cocarcinogen — a substance that can promote cancer when acting with other substances, but which does not promote cancer by itself
- cochairwoman — a woman who cochairs an organization
- coconut crab — a large, terrestrial crab, Birgus latro, of islands in the South Pacific, that feeds on coconuts.
- code-sharing — a commercial agreement between two airlines that allows passengers to use a ticket from one airline to travel on another
- coelenterata — the phylum comprising the coelenterates.
- coelenterate — any invertebrate of the phylum Cnidaria (formerly Coelenterata), having a saclike body with a single opening (mouth), which occurs in polyp and medusa forms. Coelenterates include the hydra, jellyfishes, sea anemones, and corals
- cogeneration — the process of generating electricity and steam from the same power plant
- cogenerators — Plural form of cogenerator.
- coin changer — a machine that gives change rapidly, as to a customer, typically operated by a manual keyboard and often used in association with a cash register.
- coir matting — a floor covering or packing material made of coir
- coleopterans — Plural form of coleopteran.
- collar point — a point midway between the heart point and top of an escutcheon.
- collinearity — lying in the same straight line.
- colon cancer — a type of cancer that affects the colon
- colorisation — The process of converting to color.
- colorization — Colorization is a technique used to add colour to old black and white films.
- colourations — Plural form of colouration.
- columnarized — columnar (def 3).