12-letter words containing m, y, o
- chord symbol — any of a series of letters and numerals, used as a shorthand indication of chords, esp in jazz, folk, or pop music
- chrestomathy — a collection of literary passages, used in the study of language
- chromaticity — the quality of a colour or light with reference to its purity and its dominant wavelength
- chromatology — chromatics.
- chromography — (obsolete) chromolithography.
- chronosystem — A pattern of events and transitions over the course of a person's life.
- chrysomelids — Plural form of chrysomelid.
- chylomicrons — Plural form of chylomicron.
- chymotrypsin — a powerful proteolytic enzyme secreted from the pancreas in the form of chymotrypsinogen, being converted to the active form by trypsin
- chymotryptic — relating to chymotrypsin
- circumrotary — Alternative form of circumrotatory.
- city company — (in Britain) a corporation that represents one of the historic trade guilds of London
- clamourously — Archaic spelling of clamorously.
- clitorectomy — (surgery) the surgical procedure to remove all or part of the clitoris; female circumcision.
- coccygectomy — (surgery) Surgical removal of the coccyx.
- columbus day — Oct 12, a legal holiday in most states of the US: the date of Columbus' landing in the West Indies (Caribbean) in 1492
- combat-ready — ready for combat
- come-all-you — a street ballad, especially in England.
- cometography — the scientific description and recording of comets
- comfortingly — In a comforting manner.
- commandingly — being in command: a commanding officer.
- commendatory — serving to commend; expressing praise or approval
- commensality — eating together at the same table.
- commercially — of, relating to, or characteristic of commerce.
- commodiously — In a commodious manner.
- communicably — capable of being easily communicated or transmitted: communicable information; a communicable disease.
- companionway — A companionway is a staircase or ladder that leads from one deck to another on a ship.
- company time — the regular hours during which employees are expected to work
- company town — a town built by a company for its employees
- compaternity — the relationship between the godparents of a child or between the godparents and the child's parents.
- compellingly — in a way that demands attention and interest
- compensatory — Compensatory payments involve money paid as compensation.
- complacently — pleased, especially with oneself or one's merits, advantages, situation, etc., often without awareness of some potential danger or defect; self-satisfied: The voters are too complacent to change the government.
- compound eye — the convex eye of insects and some crustaceans, consisting of numerous separate light-sensitive units (ommatidia)
- compound key — (database) (Or "multi-part key", "concatenated key") A key which consists of more than one attribute of the body of information (e.g. database "record") it identifies.
- compressedly — in a compressed manner
- compulsatory — compulsory
- compulsively — compelling; compulsory.
- compulsivity — compulsiveness
- compulsorily — required; mandatory; obligatory: compulsory education.
- concomitancy — concomitance.
- condemnatory — Condemnatory means expressing strong disapproval.
- confirmatory — confirming or tending to confirm
- conformality — (mathematics) The condition (of a map) of being conformal.
- conformingly — In a way that conforms.
- consummately — to bring to a state of perfection; fulfill.
- consummatory — to bring to a state of perfection; fulfill.
- contemporary — Contemporary things are modern and relate to the present time.
- contemptibly — deserving of or held in contempt; despicable.
- coomaraswamy — Ananda (Kentish). 1877–1947, Ceylonese art historian and interpreter of Indian culture to the West