15-letter words containing a, c, o, i
- chairpersonship — a person who presides over a meeting, committee, board, etc.
- 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.
- 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.
- chao k'uang-yin — (Tʾai Tsu) 927–976 a.d, Chinese emperor 960–976: founder of the Sung dynasty.
- 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.
- 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.
- chemical toilet — a toilet in which waste is treated with chemicals
- 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.
- chewing tobacco — tobacco, in the form of a plug, usually flavored, for chewing rather than smoking.
- chicago heights — a city in NE Illinois, S of Chicago.
- chicken cholera — fowl cholera.
- chief constable — A Chief Constable is the officer who is in charge of the police force in a particular county or area in Britain.
- child abduction — the crime of removing a child from its rightful home
- chile con carne — chili con carne
- chili con carne — Chili con carne is a dish made from meat, with a thick sauce of tomatoes, and powdered or fresh chilies.
- chimney swallow — another name for common swallow
- chimney-pot hat — a high silk hat; top hat.
- chloramphenicol — a broad-spectrum antibiotic used esp in treating typhoid fever and rickettsial infections: obtained from the bacterium Streptomyces venezuelae or synthesized. Formula: C11H12N2O5Cl2
- cholangiectasis — Dilation of the bile ducts.
- cholangiography — radiographic examination of the bile ducts after the introduction into them of a contrast medium
- cholecalciferol — a compound occurring naturally in fish-liver oils, used to treat rickets. Formula: C27H44O
- cholesterolemia — the presence of an abnormal amount of cholesterol in the blood.
- cholinergically — in a cholinergic manner
- choral speaking — recitation of poetry, dramatic pieces, etc. by a chorus of speakers
- chorda tendinea — any of the tendons extending from the papillary muscles to the atrioventricular valves and preventing the valves from moving into the atria during ventricular contraction.
- chorioallantoic — relating to the chorioallantois
- chorioallantois — the membrane of a fetus that is formed by the merging of the allantois and the chorion
- choriocarcinoma — a cancer that occurs during pregnancy in the uterus
- christmas carol — a joyful hymn or religious song, celebrating the birth of Christ
- chromatic scale — a twelve-note scale including all the semitones of the octave
- chromatographic — (analytical chemistry) Of or pertaining to chromatography.
- chromic acetate — a grayish-green, water-soluble powder, Cr(C 2 H 3 O 2) 3 ⋅H 2 O, used chiefly as a mordant in dyeing and printing textiles.
- chromium-plated — having been plated with chromium
- chronic disease — long-term illness
- chronologically — arranged in the order of time: a chronological list of events.
- church slavonic — Old Church Slavonic, esp as preserved in the liturgical use of the Orthodox church
- cigarette smoke — the acrid smoke produced by cigarettes being smoked
- ciliary process — one of the folds on the ciliary body, connected with the suspensory ligament of the crystalline lens.
- cinderella book — (publication) "Introduction to Automata Theory, Languages, and Computation", by John Hopcroft and Jeffrey Ullman, (Addison-Wesley, 1979). So called because the cover depicts a girl (putatively Cinderella) sitting in front of a Rube Goldberg device and holding a rope coming out of it. On the back cover, the device is in shambles after she has (inevitably) pulled on the rope. See also book titles.
- cineangiography — the use of motion-picture recording to trace the passage of dye through blood vessels, for the diagnosis of heart and blood vessel disease
- cinematographed — a motion-picture projector.
- cinematographer — A cinematographer is a person who decides what filming techniques should be used during the shooting of a film.