21-letter words containing e, a, c, h, n
- catherine of braganza — 1638–1705, wife of Charles II of England, daughter of John IV of Portugal
- cause-effect graphing — (programming) A testing technique that aids in selecting, in a systematic way, a high-yield set of test cases that logically relates causes to effects to produce test cases. It has a beneficial side effect in pointing out incompleteness and ambiguities in specifications.
- caviar to the general — a thing appealing only to a highly cultivated taste: Hamlet II, ii
- central daylight time — the time observed in the Central Time Zone of the United states when Daylight Savings Time is in effect; GMT -5
- central limit theorem — any of several theorems stating that the sum of a number of random variables obeying certain conditions will assume a normal distribution as the number of variables becomes large.
- 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.
- charity commissioners — (in Britain) members of a commission constituted to keep a register of charities and control charitable trusts
- cheese and wine party — a party at which cheese and wine are served
- cheque guarantee card — a card issued by a bank or building society, guaranteeing payment of a customer's cheques up to a stated value
- 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 master sergeant — a solider of the highest enlisted rank in the US Air Force
- chief warrant officer — a senior-ranking warrant officer in various armed forces
- chinese lantern plant — winter cherry (def 1).
- 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
- chinese-lantern plant — a perennial ground-cherry (Physalis alkekengi) grown for winter bouquets because of the bladderlike red calyx that surrounds its small, tomatolike fruit
- chink in one's armour — a small but fatal weakness
- christmas decorations — decorations of different kinds appropriate to Christmas, such as tinsel, candles, images of angels, etc.
- 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.
- clone-and-hack coding — case and paste
- comfortably-furnished — containing comfortable furniture
- 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.
- 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).
- 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
- 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
- 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
- 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.
- dynamic data exchange — (language) (DDE, originally Dynamic Data Linking, DDL) A Microsoft Windows 3 hotlink protocol that allows application programs to communicate using a client-server model. Whenever the server (or "publisher") modifies part of a document which is being shared via DDE, one or more clients ("subscribers") are informed and include the modification in the copy of the data on which they are working.
- electroencephalograms — Plural form of electroencephalogram.
- electroencephalograph — A machine used for electroencephalography.
- electronystagmography — A diagnostic test to record involuntary movements of the eye caused by a condition known as nystagmus. It can also be used to diagnose the cause of vertigo, dizziness or balance dysfunction by testing the vestibular system.
- enhanced oil recovery — any of several techniques that make it possible to recover more oil than can be obtained by natural pressure, such as the injection of fluid or gases into an oilfield to force more oil to the surface
- enharmonic modulation — a change of key achieved by regarding a note in one key as an equivalent note in another. Thus E flat in the key of A flat could be regarded as D sharp in the key of B major
- epidemic encephalitis — any type of widespread encephalitis caused by various viruses
- extended architecture — (storage) (XA) A CD-ROM drive specification required by Green Book CD-ROM and White Book CD-ROM formats. Drives labelled "XA ready" may require a firmware upgrade.
- foreign exchange rate — the rate that specifies how much the currency of a nation is worth in terms of the currency of another nation
- forensic anthropology — the branch of physical anthropology in which anthropological data, criteria, and techniques are used to determine the sex, age, genetic population, or parentage of skeletal or biological materials in questions of civil or criminal law.
- forward exchange rate — the exchange rate of a currency to be delivered at a later date
- french and indian war — the war in America in which France and its Indian allies opposed England 1754–60: ended by Treaty of Paris in 1763.
- french fried potatoes — a more formal name for chips
- full faith and credit — the obligation under Article IV of the U.S. Constitution for each state to recognize the public acts, records, and judicial proceedings of every other state.