19-letter words containing a, c, o, i
- cartilaginification — The formation of cartilage.
- cash in one's chips — to turn in one's chips for their equivalent in money
- cask of amontillado — a short story (1846) by Edgar Allan Poe.
- cast one's lot with — one of a set of objects, as straws or pebbles, drawn or thrown from a container to decide a question or choice by chance.
- catalytic converter — A catalytic converter is a device which is fitted to a car's exhaust to reduce the pollution coming from it.
- catalytic reforming — Catalytic reforming is a process that converts petroleum refinery naphthas to high-octane blending components.
- caterpillar tractor — a tractor powered by a Caterpillar track
- catherine of aragon — 1485–1536, first wife of Henry VIII of England and mother of Mary I. The annulment of Henry's marriage to her (1533) against papal authority marked an initial stage in the English Reformation
- cathodic protection — a technique for protecting metal structures, such as steel ships and pipelines, from electrolytic corrosion by making the structure the cathode in a cell, either by applying an electromotive force directly or by putting it into contact with a more electropositive metal
- cathodoluminescence — luminescence caused by irradiation with electrons (cathode rays)
- celestial longitude — the angular distance measured eastwards from the vernal equinox to the intersection of the ecliptic with the great circle passing through a celestial body and the poles of the ecliptic
- central reservation — The central reservation is the strip of ground, often covered with grass, that separates the two sides of a major road.
- cerebral thrombosis — formation of a clot or other blockage in one of the blood vessels of the brain, often followed by neurologic damage; a type of stroke.
- cerebrospinal fluid — the clear colourless fluid in the spaces inside and around the spinal cord and brain
- chamber of deputies — the lower house of the legislature of certain countries, as Italy.
- champagne socialist — a professed socialist who enjoys an extravagant lifestyle
- champion of england — a hereditary official at British coronations, representing the king (King's Champion) or the queen (Queen's Champion) who is being crowned, and having originally the function of challenging to mortal combat any person disputing the right of the new sovereign to rule.
- characteristic root — a scalar for which there exists a nonzero vector such that the scalar times the vector equals the value of the vector under a given linear transformation on a vector space.
- chassis dynamometer — A chassis dynamometer is a piece of test equipment fitted with rollers for the wheels of a vehicle, that is capable of providing drive input and measuring output such as power and torque at the wheels.
- chemical castration — the use of drugs to reduce libido
- chemical processing — Chemical processing is a way of making changes to chemical compounds.
- chemolithoautotroph — (biology) A chemoautotroph or lithoautotroph.
- cherenkov radiation — the electromagnetic radiation produced when a charged particle moves through a medium at a greater velocity than the velocity of light in that medium
- chinese tallow tree — tallow tree.
- chlorobromide paper — a relatively fast printing paper coated with an emulsion of silver chloride and silver bromide.
- chloroplatinic acid — a red-brown, crystalline, water-soluble solid, H 2 PtCl 6 ⋅6H 2 O, used chiefly in platinizing glass, metals, and ceramic ware.
- chlorosulfonic acid — a colorless or yellowish, highly corrosive, pungent liquid, HClO 3 S, usually produced by treating sulfur trioxide with hydrogen chloride: used in organic synthesis to introduce the sulfonyl chloride group, =SO 2 Cl.
- cholecystolithiasis — The presence of a gallstone specifically in the gall bladder.
- choledocholithiasis — The presence of gallstones in the common bile duct.
- christian democracy — the beliefs, principles, practices, or programme of a Christian Democratic party
- christian socialist — a member of any of certain European political parties advocating a form of social organization based on Christian and socialistic principles.
- christmas pantomime — pantomime (def 5).
- chromatographically — With regard to, or by by using chromatography.
- chromoblastomycosis — Long-term fungal infection of the skin and subcutaneous tissue.
- chronological order — the arrangement of things following one after another in time: Put these documents in chronological order.
- cinematographically — a motion-picture projector.
- circle of curvature — the circle with its center on the normal to the concave side of a curve at a given point on the curve and with its radius equal to the radius of curvature at the point.
- circular definition — a definition in which the definiendum (the expression being defined) or a variant of it appears in the definiens (the expression that defines it).
- circulation manager — the senior manager responsible for the distribution of a newspaper
- claims investigator — A claims investigator is a person who is employed by an insurance company to obtain information necessary to evaluate a claim.
- claims notification — Claims notification is the process of informing an insurance company that a loss has occurred and that the policyholder intends to ask for money as a result.
- class action (suit) — a legal action brought by one or more persons on behalf of themselves and a much larger group, all of whom have the same grounds for action
- class consciousness — awareness of belonging to a particular social rank or grade
- classical economics — a system or school of economic thought developed by Adam Smith, Jeremy Bentham, Thomas Malthus, and David Ricardo, advocating minimum governmental intervention, free enterprise, and free trade, considering labor the source of wealth and dealing with problems concerning overpopulation.
- classroom assistant — a person whose job is to help a schoolteacher in the classroom
- clinical depression — depression in a patient that meets defined criteria and that is deemed to merit treatment
- clinical governance — a systematic approach to raising standards of health care and tackling poor performance in hospitals
- clinical psychology — the branch of psychology that studies and treats mental illness and mental retardation
- clinicopathological — of or relating to the combined study of disease symptoms and pathology.
- cobalt violet light — a pigment used in painting consisting mainly of arsenate of cobalt, characterized chiefly by its violet color, permanence, and poisonous properties.