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18-letter words containing c, h, e

  • decachlorobiphenyl — (organic compound) The fully chlorinated polychlorinated biphenyl containing ten chlorine atoms.
  • dechristianization — The act of dechristianizing; the systematic removal of Christianity or Christian elements.
  • dendrochronologist — One who carries out dendrochronology.
  • depth-first search — (algorithm)   A graph search algorithm which extends the current path as far as possible before backtracking to the last choice point and trying the next alternative path. Depth-first search may fail to find a solution if it enters a cycle in the graph. This can be avoided if we never extend a path to a node which it already contains. Opposite of breadth first search. See also iterative deepening.
  • 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
  • dichloracetic acid — a highly corrosive acid. Formula: C2H2Cl2O2
  • dielectric heating — the heating of a nonconducting substance caused by dielectric loss when the material is placed in a variable electric field.
  • digital switchover — the process of changing the method of transmitting television from analogue to digital format
  • digital technology — the branch of scientific or engineering knowledge that deals with the creation and practical use of digital or computerized devices, methods, systems, etc.: advances in digital technology.
  • dihydrotachysterol — a white, crystalline, water-insoluble sterol, C 28 H 46 O, derived from ergosterol: used chiefly in the treatment of hypoparathyroidism.
  • diphosphoglycerate — an ester of phosphoric acid and glyceric acid that occurs in the blood and that promotes the release of hemoglobin-bound oxygen.
  • diphtheria vaccine — a vaccine used to produce immunity against diphtheria
  • diplomatic shuttle — a series of diplomatic visits to other states made by an official, such as an ambassador or envoy
  • discharge printing — a fabric-printing method in which the material is dyed and then certain areas are discharged so as to permit the original hue or its color replacement to act as a pattern against the colored ground.
  • 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
  • dodecadodecahedral — Having the form of a dodecadodecahedron.
  • dodecadodecahedron — (geometry) A nonconvex polyhedron with twenty-four faces, thirty vertices, and sixty edges.
  • 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.
  • drinking chocolate — sweetened cocoa powder
  • drop in the bucket — a deep, cylindrical vessel, usually of metal, plastic, or wood, with a flat bottom and a semicircular bail, for collecting, carrying, or holding water, sand, fruit, etc.; pail.
  • duchenne dystrophy — the most common form of muscular dystrophy, usually affecting only boys
  • dysthymic disorder — a psychiatric disorder characterized by generalized depression that lasts for at least a year
  • each and every one — all
  • echeverria alvarez — Luis [lwees] /lwis/ (Show IPA), born 1922, Mexican political leader: president 1970–76.
  • echoencephalograph — a device that employs reflected ultrasonic waves to examine the position of brain structures.
  • 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.
  • eggshell porcelain — a type of very thin translucent porcelain originally made in China
  • 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.
  • electric discharge — electricity emitted
  • electrocardiograph — A machine used for electrocardiography.
  • electrophotography — Any of several methods of photocopying in which an image is created and then transferred between surfaces using static electricity.
  • electrotherapeutic — Relating to electrotherapeutics.
  • elementary teacher — a teacher in an elementary school
  • emmenthal (cheese) — a hard, pale-yellow Swiss cheese with a mild flavor and large holes
  • epicycloidal wheel — one of the planetary gears of an epicyclic train
  • established church — a Church that is officially recognized as a national institution, esp the Church of England
  • 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.
  • ethnopsychological — Relating to ethnopsychology.
  • 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
  • exclusive brethren — one of the two main divisions of the Plymouth Brethren, which, in contrast to the Open Brethren, restricts its members' contacts with those outside the sect
  • 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
  • ferdinand schiller — Ferdinand Canning Scott [kan-ing] /ˈkæn ɪŋ/ (Show IPA), 1864–1937, English philosopher in the U.S.
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