16-letter words containing a, c, h, i
- christmas dinner — the main meal on Christmas day, eaten any time in the afternoon or evening
- christmas factor — a protein implicated in the process of blood clotting, the lack of which causes Christmas disease
- christmas hamper — a collection of seasonal delicacies, often housed in a wicker hamper, which people or organizations give as Christmas presents
- christmas island — an island in the Indian Ocean, south of Java: administered by Singapore (1900–58), now by Australia; phosphate mining. Pop: 1496 (2013 est). Area: 135 sq km (52 sq miles)
- christmas lights — strings of lights put up in the Christmas period to decorate houses
- chromatic number — (mathematics) The smallest number of colours necessary to colour the nodes of a graph so that no two adjacent nodes have the same colour. See also: four colour map theorem.
- chromatographies — Plural form of chromatography.
- chromium plating — plating, often for decorative effect, made of chromium
- chromolithograph — a picture produced by chromolithography
- chronic glaucoma — Ophthalmology. abnormally high fluid pressure in the eye, most commonly caused either by blockage of the channel through which aqueous humor drains (open-angle glaucoma or chronic glaucoma) or by pressure of the iris against the lens, which traps the aqueous humor (angle-closure glaucoma or acute glaucoma)
- chryselephantine — (of ancient Greek statues) made of or overlaid with gold and ivory
- churidar pyjamas — long tight-fitting trousers, worn by Indian men and women
- chuvash republic — a constituent republic of W central Russia, in the middle Volga valley: generally low-lying with undulating plains and large areas of forest. Capital: Cheboksary. Pop: 1 313 900 (2002). Area: 18 300 sq km (7064 sq miles)
- cigarette holder — A cigarette holder is a narrow tube that you can put a cigarette into in order to hold it while you smoke it.
- cinnamic alcohol — a white, water-insoluble, crystalline solid, C 9 H 10 O, having a hyacinthine odor, used chiefly as a scent in the manufacture of perfumes.
- civilian clothes — not military uniform
- clackmannanshire — a council area and historical county of central Scotland; became part of the Central region in 1975 but reinstated as an independent unitary authority in 1996; mainly agricultural. Administrative centre: Alloa. Pop: 47 680 (2003 est). Area: 142 sq km (55 sq miles)
- classical school — an economic theory based on the works of Adam Smith and David Ricardo, which explains the creation of wealth and advocates free trade
- clay-with-flints — a deposit of stiff clay containing unworn whole flints in the S England
- clearsightedness — The property of being clearsighted.
- cochineal cactus — a treelike cactus, Nopalea cochenillifera, of Mexico and Central America, that is a principal source of food of the cochineal insect.
- cochineal insect — a Mexican homopterous insect, Dactylopius coccus, that feeds on cacti
- cochlear implant — a device that stimulates the acoustic nerve in the inner ear in order to produce some form of hearing in people who are deaf from inner ear disease
- coital exanthema — a common venereal disease affecting horses and cattle, caused by a virus and characterized by the appearance of pustules on the mucous membranes of the genital organs and neighboring skin.
- colonial heights — a town in central Virginia.
- columbia heights — a city in SE Minnesota, near Minneapolis.
- combination shot — a shot in pool in which the cue ball strikes at least one object ball before contact is made with the ball to be pocketed.
- common logarithm — a logarithm to the base ten. Usually written log or log10
- community charge — (formerly in Britain) a flat-rate charge paid by each adult in a community to his or her local authority in place of rates
- concertina crash — a collision in which vehicle after vehicle hits the one ahead in a sequence of events triggered by the first car crash
- considering that — You use considering that to indicate that you are thinking about a particular fact when making a judgment or giving an opinion.
- coping mechanism — something a person does to deal with a difficult situation
- cornelian cherry — a flowering tree of the dogwood family Cornus mas
- corona discharge — an electrical discharge appearing on and around the surface of a charged conductor, caused by ionization of the surrounding gas
- coronary cushion — a thick band of vascular tissue in the coronet of horses and other hoofed animals that secretes the horny wall of the hoof.
- cottage hospital — a small rural hospital
- covariant theory — the principle that physical laws have the same form and interrelations in any system of coordinates in which they are expressed.
- cowichan sweater — a heavy sweater of grey, unbleached wool with distinctive designs that were originally black-and-white but are now sometimes coloured: knitted originally by Cowichan Indians in British Columbia
- craftspersonship — The body of activities, skills, techniques, knowledge, and expertise pertinent to (a) particular craft(s).
- crystallographic — of, relating to, or dealing with crystals or crystallography.
- curtain-twitcher — a person who likes to watch unobserved what other people are doing
- cut a wide swath — to make an ostentatious display or forceful impression
- cyclophosphamide — an alkylating agent used in the treatment of leukaemia and lymphomas
- cytoarchitecture — (biology) The arrangement of cells in an organism or organ.
- dagwood sandwich — a thick sandwich filled with a variety of meats, cheeses, dressings, and condiments.
- dark-side hacker — (jargon, legal) A criminal or malicious hacker; a cracker. From George Lucas's Darth Vader, "seduced by the dark side of the Force". The implication that hackers form a sort of elite of technological Jedi Knights is intended. Opposite: samurai.
- darwin's finches — the finches of the subfamily Geospizinae of the Galapagos Islands, showing great variation in bill structure and feeding habits: provided Darwin with evidence to support his theory of evolution
- database machine — (hardware) A computer or special hardware that stores and retrieves data from a database. It is specially designed for database access and is coupled to the main (front-end) computer(s) by a high-speed channel. This contrasts with a database server, which is a computer in a local area network that holds a database. The database machine is tightly coupled to the main CPU, whereas the database server is loosely coupled via the network.
- dealcoholization — to remove some or all of the alcohol from (a drink).
- debating chamber — a room where a legislative assembly holds debates