12-letter words containing h, a, c, i, o
- child labour — the full-time employment of children below a minimum age laid down by statute
- chiliahedron — a thousand-sided polyhedron
- chill factor — windchill factor
- chilpancingo — a town in S Mexico, capital of Guerrero state, in the Sierra Madre del Sur. Pop: 166 000 (2005 est)
- chimneyboard — a partition or a cover to shut off a fireplace
- china closet — a cabinet or cupboard for storing or exhibiting chinaware.
- chincoteague — a town on a small island in a lagoon (Chincoteague Bay) in E Virginia: annual wild pony roundup.
- chinhuangtao — a seaport in NE Hebei province, in NE China, on the Bohai.
- chirographer — Alternative form of chirographist.
- chirographic — Of or relating to chirography.
- chiropractic — Chiropractic is the treatment of injuries by pressing and moving people's joints, especially the spine.
- chiropractor — A chiropractor is a person who treats injuries by chiropractic.
- chiropterans — Plural form of chiropteran.
- chivalrously — having the qualities of chivalry, as courage, courtesy, and loyalty.
- chloralamide — (chemistry) A compound of chloral and formic amide, used to induce sleep.
- chlorambucil — an alkylating drug derived from nitrogen mustard, administered orally in the treatment of leukaemia and other malignant diseases. Formula: C14H19Cl2NO2
- chlorapatite — (mineral) A variety of apatite containing chloride instead of fluoride.
- chloric acid — a strong acid with a pungent smell, known only in solution and in the form of chlorate salts. Formula: HClO3
- chlorinating — Present participle of chlorinate.
- chlorination — Chemistry. to combine or treat with chlorine. to introduce chlorine atoms into an organic compound by an addition or substitution reaction.
- chloroacetic — an acid made by chlorinating acetic acid
- chocolatiers — Plural form of chocolatier.
- choirmasters — Plural form of choirmaster.
- cholerically — In a choleric manner.
- chondrostian — relating to the class Chondrostei of fish with fin rays
- chorographic — Relating to chorography.
- choroid coat — a pigmented, highly vascular membrane of the eye that is continuous with the iris and lies between the sclera and the retina, functioning to nourish the retina and absorb scattered light.
- chorological — relating to the place where something can be found
- christophany — an appearance or emergence of Christ following his crucifixion
- chromaticism — the use of chromatic tones.
- chromaticity — the quality of a colour or light with reference to its purity and its dominant wavelength
- chromatophil — Also, chromatophilic, chromatophilous [kroh-muh-tof-uh-luh s] /ˌkroʊ məˈtɒf ə ləs/ (Show IPA). chromophil (def 1).
- chromatopsia — an irregularity in the ability to see colours properly
- chromic acid — an unstable dibasic oxidizing acid known only in solution and in the form of chromate salts. Formula: H2CrO4
- chromophilia — the property of staining readily.
- chromophobia — Lb biology The quality of being resistant to staining.
- chronophobia — Fear of the passing of time, or more generally of time itself.
- cichoraceous — relating to plants of the sub-order Cichoraceae
- cigar holder — a mouthpiece of wood, ivory, etc, used for holding a cigar while it is smoked
- closed chain — any structural arrangement, used in the models and formulas of molecules, consisting of a chain of atoms that forms a closed geometric figure; ring
- coach driver — a person who drives a coach
- coachability — a large, horse-drawn, four-wheeled carriage, usually enclosed.
- coachbuilder — (historical) A builder of horse-drawn coaches.
- coast salish — (in Canada) a division of the peoples who speak Salish languages
- cochairwoman — a woman who cochairs an organization
- cochin china — a former French colony of Indochina (1862–1948): now the part of Vietnam that lies south of Phan Thiet
- cochin-china — a former state in S French Indochina: now part of Vietnam.
- code-sharing — a commercial agreement between two airlines that allows passengers to use a ticket from one airline to travel on another
- coelacanthic — of or relating to the coelacanth
- coenesthesia — general awareness of one's own body