15-letter words containing c, o
- celo-navigation — celestial navigation.
- central locking — a system by which all the doors of a motor vehicle can be locked simultaneously when the driver's door is locked
- centrifugal box — a revolving chamber, used in the spinning of manufactured filaments, in which the plastic fibers, subjected to centrifugal force, are slightly twisted and emerge in the form of yarn wound into the shape of a hollow cylinder.
- centrosymmetric — having symmetry with a central point
- cephalochordate — any chordate animal of the subphylum Cephalochordata, having a fishlike body and no vertebral column; lancelet
- cephalohematoma — A hemorrhage of blood between the skull and periosteum of a newborn baby secondary to rupture of blood vessels crossing the periosteum.
- cephalothoracic — the anterior part of the body in certain arachnids and crustaceans, consisting of the coalesced head and thorax.
- cephalothoraxes — Plural form of cephalothorax.
- cerebral cortex — the outermost layer of the cerebrum that is the locus of higher brain processes
- cerebrovascular — of or relating to the blood vessels and the blood supply of the brain
- ceremoniousness — The state of being ceremonious.
- ceylon cinnamon — the aromatic inner bark of any of several East Indian trees belonging to the genus Cinnamonum, of the laurel family, especially the bark of C. zeylanicum (Ceylon cinnamon) used as a spice, or that of C. loureirii (Saigon cinnamon) used in medicine as a cordial and carminative.
- chairpersonship — a person who presides over a meeting, committee, board, etc.
- chamber concert — a concert of chamber music
- chamber counsel — a counsel who advises in private and does not plead in court
- chamois leather — soft cleaning cloth
- chandler period — the period of the oscillation (Chandler wobble) of the earth's axis, varying between 416 and 433 days.
- chandler wobble — a slight, irregular nutation of the earth's rotational axis with a period of c. 428 days
- change of heart — a profound change of outlook, opinion, etc
- change of venue — the removal of a trial out of one jurisdiction into another
- channel hopping — (chat) To rapidly switch channels on IRC, or a GEnie chat board. This term may derive from the TV idiom, "channel surfing".
- channel-hopping — Channel-hopping means switching quickly between different television channels because you are looking for something interesting to watch.
- chanson d'amour — love song.
- chao k'uang-yin — (Tʾai Tsu) 927–976 a.d, Chinese emperor 960–976: founder of the Sung dynasty.
- character actor — A character actor is an actor who specializes in playing unusual or eccentric people.
- charcoal burner — (formerly) a person whose work was making charcoal by burning
- charcoal-burner — a device that burns charcoal, as a stove or brazier.
- charles coulomb — Charles Augustin de [sharl oh-gy-stan duh] /ʃarl oʊ güˈstɛ̃ də/ (Show IPA), 1736–1806, French physicist and inventor.
- charles doughty — Charles Montagu [mon-tuh-gyoo] /ˈmɒn təˌgyu/ (Show IPA), 1843–1926, English traveler and writer.
- charles simonyi — (person) Microsoft programmer, most famously responsible for Hungarian Notation. Simonyi was born in Budapest in 1948, and for more than a decade was senior programmer at Microsoft in Redmond.
- charleston peak — a mountain in SE Nevada: highest peak in the Spring Mountains. 11,919 feet (3635 meters).
- charlotte russe — a cold dessert made in a mould with sponge fingers enclosing a mixture of whipped cream, custard, etc
- charlottesville — city in central Va.: pop. 45,000
- charm offensive — If you say that someone has launched a charm offensive, you disapprove of the fact that they are being very friendly to their opponents or people who are causing problems for them.
- chartophylacium — (in a medieval church) a place for the keeping of records and documents.
- chaulmoogra oil — a brownish-yellow oil or soft fat expressed from the seeds of a chaulmoogra tree, used formerly in the treatment of leprosy and skin diseases.
- check protector — checkwriter.
- chef de mission — the head of a diplomatic body
- chelsea tractor — a four-by-four
- chemical toilet — a toilet in which waste is treated with chemicals
- chemoattractant — a chemical substance that provokes chemotaxis, esp one that causes a bacterium to move in the direction in which its concentration is increasing
- chemoautotrophs — Plural form of chemoautotroph.
- chemoautotrophy — the process of deriving energy through oxidizing inorganic chemical compounds, as opposed to photosynthesis
- chemolithotroph — Chemoautotroph.
- chemoprevention — the prevention of disease, esp cancer, by means of chemical agents
- chemopsychiatry — the study and application of chemical substances in psychiatry
- chemosterilants — Plural form of chemosterilant.
- chemotaxonomist — a specialist in the field of chemotaxonomy
- chenopodiaceous — belonging to the Chenopodiaceae, formerly the goosefoot family, now considered part of the amaranth family of plants.
- chenopodium oil — a colorless or yellowish oil obtained from the seeds and leaves of Mexican tea, used chiefly in medicine as an agent for killing or expelling intestinal worms.