12-letter words containing c, a, o, d
- hendecagonal — (geometry) Having eleven sides an angles; similar to a hendecagon.
- heroic drama — Restoration tragedy, especially that popular in England c1660–1700, using highly rhetorical language and written in heroic couplets.
- heterodactyl — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- hexachloride — a chloride containing six atoms of chlorine.
- hexadecanoic — Of or pertaining to hexadecanoic acid or its derivatives.
- hexadecapole — (physics) Anything having sixteen poles or electrodes, or a combination of four quadrupoles.
- hidrocystoma — An adenoma of the sweat glands.
- high command — the leadership or highest authority of a military command or other organization.
- highway code — In Britain, the Highway Code is an official book published by the Department of Transport, which contains the rules which tell people how to use public roads safely.
- holiday camp — In Britain, a holiday camp is a place which provides holiday accommodation and entertainment for large numbers of people.
- huffman code — Huffman coding
- human comedy — French La Comédie Humaine. a collected edition of tales and novels in 17 volumes (1842–48) by Honoré de Balzac.
- hydnocarpate — a salt or ester of hydnocarpic acid.
- hydrocarbons — any of a class of compounds containing only hydrogen and carbon, as an alkane, methane, CH 4 , an alkene, ethylene, C 2 H 4 , an alkyne, acetylene, C 2 H 2 , or an aromatic compound, benzene, C 6 H 6 .
- hydrocephaly — an accumulation of serous fluid within the cranium, especially in infancy, due to obstruction of the movement of cerebrospinal fluid, often causing great enlargement of the head; water on the brain.
- hydrocracker — a high-pressure processing unit used for hydrocracking.
- hydrodynamic — pertaining to forces in or motions of liquids.
- hydroelastic — undergoing a change in elasticity as a result of the flow of water or another fluid
- hydrographic — the science of the measurement, description, and mapping of the surface waters of the earth, with special reference to their use for navigation.
- hydrological — the science dealing with the occurrence, circulation, distribution, and properties of the waters of the earth and its atmosphere.
- hydronautics — (nautical) The science of the design and construction of ships, their engines, and their instrumentation.
- hydronically — in a hydronic manner; in a manner relating to a heating system that uses water
- hydrostatics — the branch of hydrodynamics that deals with the statics of fluids, usually confined to the equilibrium and pressure of liquids.
- hydroxy acid — an organic acid containing both a carboxyl and a hydroxyl group.
- hypochondria — Also, hypochondriasis [hahy-poh-kuh n-drahy-uh-sis] /ˌhaɪ poʊ kənˈdraɪ ə sɪs/ (Show IPA). Psychiatry. an excessive preoccupation with one's health, usually focusing on some particular symptom, as cardiac or gastric problems.
- hypothecated — Simple past tense and past participle of hypothecate.
- iceland moss — an edible lichen, Cetraria islandica, of arctic regions, containing a starchlike substance used in medicine.
- icosahedrons — Plural form of icosahedron.
- idiodynamics — a system of beliefs in psychology emphasizing the role of the personality in choosing stimuli and in organizing responses.
- idiomaticity — peculiar to or characteristic of a particular language or dialect: idiomatic French.
- idiopathical — Alternative form of idiopathic.
- idiosyncracy — Alternative spelling of idiosyncrasy.
- idiosyncrasy — A mode of behavior or way of thought peculiar to an individual.
- imidacloprid — The insecticide 1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine used to control fleas in domestic pets.
- immethodical — not methodical; without method or system.
- incoordinate — not coordinate; not coordinated.
- incorporated — legally incorporated, as a company.
- indian cobra — a highly venomous cobra, Naja naja, common in India, having markings resembling a pair of spectacles on the back of the hood.
- indian ocean — an ocean S of Asia, E of Africa, and W of Australia. 28,357,000 sq. mi. (73,444,630 sq. km).
- indicational — providing an indication; indicative
- indo-pacific — of or relating to the areas of the Indian and Pacific oceans off the coast of SE Asia.
- indoctrinate — to instruct in a doctrine, principle, ideology, etc., especially to imbue with a specific partisan or biased belief or point of view.
- indoleacetic — as in indoleacetic acid, a naturally-occurring plant growth hormone
- indomethacin — a substance, C 19 H 16 ClNO 4 , with anti-inflammatory, antipyretic, and analgesic properties: used in the treatment of certain kinds of arthritis and gout.
- infraduction — (medicine) The turning downward of a part, especially of the eye.
- initial code — a system used in the U.S. to facilitate the delivery of mail, consisting of a five- or nine-digit code printed directly after the address, the first five digits (initial code) indicating the state and post office or postal zone, the last four (expanded code) the box section or number, portion of a rural route, building, or other specific delivery location.
- iracundulous — easily angered or irritable
- irda control — (standard) (IrDA-C, formerly IrBUS) Infrared standard from IrDA. IrDA Control is a low speed communication standard that allows cordless peripherals such as keyboards, mice, game pads, and joysticks to interact with intelligent host devices. Host devices include PCs, home appliances, game machines, and television and web set-top boxes. IrDA Control supports data rates of 75 Kbps at up to 8 metres, and is designed to integrate with devices that use USB HID. Parts and products featuring IrDA Control are expected in 1998. See also IrDA Data, AIR.
- isodiametric — having equal diameters or axes.
- jordan curve — simple closed curve.