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18-letter words containing c, h, e, m

  • commercial attache — an attaché in an embassy or legation representing the commercial interests of his or her country.
  • commercial vehicle — a vehicle for carrying goods or (less commonly) passengers
  • commodity exchange — an exchange where commodities are traded
  • commonwealth games — an event held every four years in which sportspeople from the countries of the Commonwealth compete
  • comparative method — a body of procedures and criteria used by linguists to determine whether and how two or more languages are related and to reconstruct forms of their hypothetical parent language.
  • comparison shopper — an employee of a retail store hired to visit competing stores in order to gather information regarding styles, quality, prices, etc., of merchandise offered by competitors.
  • comprehensibleness — The quality of being comprehensible; comprehensibility.
  • computer telephony — Computer Telephone Integration
  • considered harmful — (programming, humour)   A type of phrase based on the title of Edsger W. Dijkstra's famous note in the March 1968 Communications of the ACM, "Goto Statement Considered Harmful", which fired the first salvo in the structured programming wars. Amusingly, the ACM considered the resulting acrimony sufficiently harmful that it will (by policy) no longer print articles taking so assertive a position against a coding practice. In the ensuing decades, a large number of both serious papers and parodies bore titles of the form "X considered Y". The structured-programming wars eventually blew over with the realisation that both sides were wrong, but use of such titles has remained as a persistent minor in-joke.
  • cot death syndrome — the unexplained sudden death of an infant during sleep
  • crystal microphone — a microphone that uses a piezoelectric crystal to convert sound energy into electrical energy
  • cunninghame graham — R(obert) B(ontine). 1852–1936, Scottish traveller, writer, and politician, noted for his essays and short stories: first president (1928) of the Scottish Nationalist Party
  • cushing's syndrome — a medical condition characterized by obesity, hypertension, excessive hair growth, etc., caused by an overactive adrenal gland or large doses of corticosteroids
  • dermot macmurrough — ?1110–71, king of Leinster, who, by enlisting the support of the English to win back his kingdom, was responsible for the English conquest of Ireland
  • destruct mechanism — a mechanism that causes the destruction of a rocket or missile when activated
  • diatomaceous earth — an unconsolidated form of diatomite
  • diplomatic shuttle — a series of diplomatic visits to other states made by an official, such as an ambassador or envoy
  • disenfranchisement — to disfranchise.
  • dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
  • dispensing chemist — a shop where drugs and medicines are sold or given out
  • double achievement — a representation of the arms of a husband beside those of his wife such that a difference of rank between them is shown.
  • dr. james h. clark — (person)   The founder of Silicon Graphics, Inc. and co-founder of Netscape Communications Corporation.
  • dysthymic disorder — a psychiatric disorder characterized by generalized depression that lasts for at least a year
  • economic geography — a branch of geography that deals with the relation of physical and economic conditions to the production and utilization of raw materials and their manufacture into finished products.
  • eighty-column mind — (abuse)   The sort said to be possessed by persons for whom the transition from punched card to paper tape was traumatic (nobody has dared tell them about disks yet). It is said that these people, including (according to an old joke) the founder of IBM, will be buried "face down, 9-edge first" (the 9-edge being the bottom of the card). This directive is inscribed on IBM's 1402 and 1622 card readers and is referenced in a famous bit of doggerel called "The Last Bug", the climactic lines of which are as follows: He died at the console Of hunger and thirst. Next day he was buried, Face down, 9-edge first. The eighty-column mind is thought by most hackers to dominate IBM's customer base and its thinking. See fear and loathing, card walloper.
  • elementary teacher — a teacher in an elementary school
  • emmenthal (cheese) — a hard, pale-yellow Swiss cheese with a mild flavor and large holes
  • ethical investment — an investment in a company whose activities or products are not considered by the investor to be unethical
  • ethnomusicological — Relating to or pertaining to ethnomusicology.
  • euclid's algorithm — (algorithm)   (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
  • exchange programme — an arrangement in which people from different countries visit each other's country, perhaps to strengthen links between them or to improve foreign language skills
  • executive chairman — the most senior internal position within a company, combining the duties of chairman and chief executive
  • farm the long acre — to graze cows on the verge of a road
  • fifth monarchy men — (during the Commonwealth in the 17th century) a militant sect of Puritans who identified the fifth monarchy with the millennial reign of Christ and who believed they should help to inaugurate that reign by force.
  • forensic chemistry — the application of facts concerning chemistry to questions of civil and criminal law.
  • fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
  • fu manchu mustache — a mustache whose ends droop to the chin.
  • genetic algorithms — genetic algorithm
  • giant peacock moth — the largest European moth, an emperor, Saturnia pyri, reaching 15 cm (6 in.) in wingspan. It is mottled brown with a prominent ocellus on each wing and being night-flying can be mistaken for a bat
  • go back to the mat — to abandon urban civilization
  • greater manchester — a metropolitan county in central England, with the city of Manchester as its center. 498 sq. mi. (1290 sq. km).
  • haemorrhagic fever — any of a group of fevers, such as Ebola virus disease and yellow fever, characterized by internal bleeding or bleeding into the skin
  • handlebar mustache — A handlebar mustache is a long thick mustache with curled ends.
  • handyman's special — fixer-upper.
  • heart-lung machine — a device through which blood is shunted temporarily for oxygenation during surgery, while the heart or a lung is being repaired.
  • heat of combustion — the heat evolved when one mole of a substance is burnt in oxygen at constant volume
  • hebdomadal council — the governing council or senate of Oxford University
  • heimlich manoeuvre — a technique in first aid to dislodge a foreign body in a person's windpipe by applying sudden upward pressure on the upper abdomen
  • helmholtz function — the thermodynamic function of a system that is equal to its internal energy minus the product of its absolute temperature and entropy: A decrease in the function is equal to the maximum amount of work available during a reversible isothermal process.
  • hemicorporectomies — Plural form of hemicorporectomy.
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