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18-letter words containing a, d, h, o

  • children of israel — the Jews; Hebrews
  • chocolate-coloured — dark brown
  • christian democrat — a member or supporter of a Christian Democratic party
  • christian endeavor — an organization of young people of various evangelical Protestant churches, formed in 1881 to promote Christian principles and service.
  • christian reformed — of or relating to a Protestant denomination (Christian Reformed Church) organized in the U.S. in 1857 by groups that had seceded from the Dutch Reformed Church.
  • church of scotland — the established church in Scotland, Calvinist in doctrine and Presbyterian in constitution
  • circular dichroism — selective absorption of one of the two possible circular polarizations of light.
  • closed scholarship — a scholarship for which only certain people, such as those from a particular school or with a particular surname, are eligible
  • coast rhododendron — a rhododendron, Rhododendron macrophyllum, of western North America, having large clusters of rose-purple flowers spotted with brown: the state flower of Washington.
  • commander in chief — Also, Commander in Chief. the supreme commander of the armed forces of a nation or, sometimes, of several allied nations: The president is the Commander in Chief of the U.S. Army, Navy, and Air Force.
  • commander-in-chief — A commander-in-chief is a senior officer who is in charge of all the forces in a particular area.
  • commodity exchange — an exchange where commodities are traded
  • common-law husband — a man considered to be a woman's husband after the couple have cohabited for several years
  • 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.
  • connected subgraph — (mathematics)   A connected graph consisting of a subset of the nodes and edges of some other graph.
  • 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.
  • continental shield — any of the large, low-lying areas in the Earth's crust that are composed of Precambrian crystalline rocks
  • cot death syndrome — the unexplained sudden death of an infant during sleep
  • dagwood (sandwich) — a thick sandwich with a variety of fillings, often of apparently incompatible foods
  • deadweight tonnage — the capacity in long tons of cargo, passengers, fuel, stores, etc. (deadweight tons) of a vessel: the difference between the loaded and light displacement tonnage of the vessel.
  • deanthropomorphism — the ridding of philosophy or religion of anthropomorphic beliefs and doctrines.
  • dear john (letter) — a letter from one's fiancée or girlfriend breaking off an engagement or love affair, or from one's wife asking for a divorce
  • death by chocolate — a very rich type of chocolate dessert or cake
  • 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.
  • demorgan's theorem — (logic)   A logical theorem which states that the complement of a conjunction is the disjunction of the complements or vice versa. In symbols: not (x and y) = (not x) or (not y) not (x or y) = (not x) and (not y) E.g. if it is not the case that I am tall and thin then I am either short or fat (or both). The theorem can be extended to combinations of more than two terms in the obvious way. The same laws also apply to sets, replacing logical complement with set complement, conjunction ("and") with set intersection, and disjunction ("or") with set union. A (C) programmer might use this to re-write if (!foo && !bar) ... as if (!(foo || bar)) ... thus saving one operator application (though an optimising compiler should do the same, leaving the programmer free to use whichever form seemed clearest).
  • 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
  • determinate growth — growth of a plant stem that is terminated early by the formation of a bud
  • diatomaceous earth — an unconsolidated form of diatomite
  • dichloracetic acid — a highly corrosive acid. Formula: C2H2Cl2O2
  • didaskaleinophobia — The fear of going to school.
  • 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.
  • diplomatic shuttle — a series of diplomatic visits to other states made by an official, such as an ambassador or envoy
  • disodium phosphate — sodium phosphate (def 2).
  • dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
  • division algorithm — the theorem that an integer can be written as the sum of the product of two integers, one a given positive integer, added to a positive integer smaller than the given positive integer. Compare Euclidean algorithm.
  • do not give a hoot — If you say that you don't give a hoot or don't care two hoots about something, you are emphasizing that you do not care at all about it.
  • 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.
  • drinking chocolate — sweetened cocoa powder
  • drug on the market — Pharmacology. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being.
  • dry-powder inhaler — A dry-powder inhaler is a device that delivers medication to the lungs in the form of a dry powder.
  • dynamic psychology — any system of psychology that emphasizes the interaction between different motives, emotions, and drives
  • each and every one — all
  • electrocardiograph — A machine used for electrocardiography.
  • epicycloidal wheel — one of the planetary gears of an epicyclic train
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