21-letter words containing e, c, h, o
- character development — the portrayal of people in a work of fiction in such a way that the reader or audience seems to learn more about them as they develop
- character recognition — Character recognition is a process which allows computers to recognize written or printed characters such as numbers or letters and to change them into a form that the computer can use.
- characteristic vector — a vector for which there exists a scalar such that the value of the vector under a given transformation is equal to the scalar times the vector.
- charge-coupled device — an electronic device, used in imaging and signal processing, in which information is represented as packets of electric charge that are stored in an array of tiny closely spaced capacitors and can be moved from one capacitor to another in a controlled way
- charity commissioners — (in Britain) members of a commission constituted to keep a register of charities and control charitable trusts
- charterhouse of parma — a novel (1839) by Stendhal.
- chequebook journalism — Chequebook journalism is the practice of paying people large sums of money for information about crimes or famous people in order to get material for newspaper articles.
- chief warrant officer — a senior-ranking warrant officer in various armed forces
- chinese forget-me-not — an eastern Asian plant, Cynoglossum amabile, of the borage family, having lance-shaped leaves and clustered, showy, blue, pink, or white flowers.
- chinese water torture — a form of torture in which water is made to drip for a long period of time onto a victim's forehead to drive him insane
- chink in one's armour — a small but fatal weakness
- chloroformyl chloride — phosgene.
- chocolate chip cookie — a biscuit containing chips of chocolate
- choledochojejunostomy — (medicine) The surgical formation of an opening between the common bile duct and the jejunum.
- christmas decorations — decorations of different kinds appropriate to Christmas, such as tinsel, candles, images of angels, etc.
- church-rosser theorem — (theory) A property of a reduction system that states that if an expression can be reduced by zero or more reduction steps to either expression M or expression N then there exists some other expression to which both M and N can be reduced. This implies that there is a unique normal form for any expression since M and N cannot be different normal forms because the theorem says they can be reduced to some other expression and normal forms are irreducible by definition. It does not imply that a normal form is reachable, only that if reduction terminates it will reach a unique normal form.
- civil rights movement — campaign for human freedoms
- class-relation method — (programming) A design technique based on the concepts of object-oriented programming and the Entity-Relationship model from the French company Softeam.
- clerk to the justices — (in England) a legally qualified person who sits in court with lay justices to advise them on points of law
- clone-and-hack coding — case and paste
- come in from the cold — to come out of exile, isolation, etc.; resume an active role
- come/get to the point — When someone comes to the point or gets to the point, they start talking about the thing that is most important to them.
- comfortably-furnished — containing comfortable furniture
- comparative philology — comparative linguistics.
- completing the square — a method, usually of solving quadratic equations, by which a quadratic expression, as x 2 − 4 x + 3, is written as the sum or difference of a perfect square and a constant, x 2 − 4 x + 4 + 3 − 4 = (x − 2) 2 − 1, by addition and subtraction of appropriate constant terms.
- computer architecture — the structure, behaviour, and design of computers
- conditional discharge — If someone who is convicted of an offence is given a conditional discharge by a court, they are not punished unless they later commit a further offence.
- congregational church — any evangelical Protestant Christian Church that is governed according to the principles of Congregationalism. In 1972 the majority of churches in the Congregational Church in England and Wales voted to become part of the United Reformed Church
- constant mesh gearbox — A constant mesh gearbox is a type of transmission in which all forward gear pairs remain engaged.
- constantine the great — (Flavius Valerius Aurelius Constantinus"the Great") a.d. 288?–337, Roman emperor 324–337: named Constantinople as the new capital; legally sanctioned Christian worship.
- consummatory behavior — a behavior pattern that occurs in response to a stimulus and that achieves the satisfaction of a specific drive, as the eating of captured prey by a hungry predator (distinguished from appetitive behavior).
- cornell theory center — (CTC) One of four supercomputing centers funded by the US National Science Foundation. The CTC also receives funding from the Advanced Research Projects Agency, the National Institutes of Health, New York State, IBM Corporation, and other members of the center's Corporate Research Institute.
- corporate hospitality — Corporate hospitality is the entertainment that a company offers to its most valued clients, for example by inviting them to sporting events and providing them with food and drink.
- correspondence school — an educational institution that offers tuition (correspondence courses) by post
- correspondence theory — the theory of truth that a statement is rendered true by the existence of a fact with corresponding elements and a similar structure.
- cosmological redshift — the part of the redshift of celestial objects resulting from the expansion of the universe.
- cottony-cushion scale — a small scale insect, Icerya purchasi, that is a pest of citrus trees in California: it is controlled by introducing an Australian ladybird, Rodolia cardinalis, into affected areas
- crool someone's pitch — to spoil an opportunity for someone
- crude oil dehydration — Crude oil dehydration is the removal of water or water vapor from crude oil, by separating the oil from the water, often in a rotating centrifuge.
- dance to another tune — to alter one's actions or opinions as a result of changed conditions
- dataflow architecture — a means of arranging computer data processing in which operations are governed by the data present and the processing it requires rather than by a prewritten program that awaits data to be processed
- de-ontological ethics — the branch of ethics dealing with right action and the nature of duty, without regard to the goodness or value of motives or the desirability of the ends of any act.
- dead from the neck up — stupid or unintelligent
- decompression chamber — a chamber in which the pressure of air can be varied slowly for returning people from abnormal pressures to atmospheric pressure without inducing decompression sickness
- dendrochronologically — By the use of, or with reference to dendrochronology.
- denominational school — a school associated with a particular religious denomination
- disruptive technology — A disruptive technology is a new technology, such as computers and the Internet, which has a rapid and major effect on technologies that existed before.
- drop the handkerchief — a children's game in which all the players but one stand in a circle facing inward, while that one player stealthily drops a handkerchief behind a player in the circle who must pursue and attempt to catch the one who dropped the handkerchief before the latter reaches the vacated place.
- dutch reformed church — of or relating to a Protestant denomination (Dutch Reformed Church) founded by Dutch settlers in New York in 1628 and renamed the Reformed Church in America in 1867.
- eiffel source checker — A compiler front-end for Eiffel 3 by Olaf Langmack <[email protected]> and Burghardt Groeber. It was generated automatically with the Karlsruhe toolbox for compiler construction according to the most recent public language definition. The parser derives an easy-to-use abstract syntax tree, supports elementary error recovery and provides a precise source code indication of errors. It performs a strict syntax check and analyses 4000 lines of source code per second on a Sun SPARC workstation.