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18-letter words containing a, h, e

  • clean as a whistle — If you describe something as clean as a whistle, you mean that it is completely clean.
  • climbing hydrangea — a woody vine, Hydrangea anomala, of eastern Asia, having shiny, egg-shaped leaves and flat-topped white flower clusters, and climbing by aerial rootlets.
  • cling like a leech — to cling or adhere persistently to something
  • clobbering machine — pressure to conform with accepted standards
  • closed scholarship — a scholarship for which only certain people, such as those from a particular school or with a particular surname, are eligible
  • clothing allowance — an amount of money to compensate for the purchase of clothes for work, school, etc
  • 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.
  • collection charges — the charges levied to cover expenses for the collection of debt
  • combustion chamber — an enclosed space in which combustion takes place, such as the space above the piston in the cylinder head of an internal-combustion engine or the chambers in a gas turbine or rocket engine in which fuel and oxidant burn
  • come back to earth — to return to reality from a fantasy or daydream
  • come the raw prawn — to attempt deception
  • 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.
  • 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.
  • congregate housing — a type of housing in which each individual or family has a private bedroom or living quarters but shares with other residents a common dining room, recreational room, or other facilities.
  • 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
  • continuation sheet — (in a document) a page that continues from the one before it, containing similar information
  • controllable-pitch — (of a marine or aircraft propeller) having blades whose pitch can be changed during navigation or flight; variable-pitch.
  • conversation chair — an English chair of the 18th century designed to be straddled facing the back of the chair with the elbows resting on the crest rail: an English imitation of the voyeuse.
  • copper naphthenate — a green salt, soluble in benzene, used as an insecticide and a wood preservative, but harmless to plants.
  • cornucopian thesis — the belief that, as long as science and technology continue to advance, growth can continue for ever because these new advances create new resources
  • coronation chicken — a dish of cold cooked chicken in a mild creamy curry sauce
  • corpuscular theory — the theory, originally proposed by Newton, and revived with the development of the quantum theory, that light consists of a stream of particles
  • cot death syndrome — the unexplained sudden death of an infant during sleep
  • countertherapeutic — Working against a therapy.
  • cranial osteopathy — osteopathy that focuses on the cranium and the spine
  • creatine phosphate — phosphocreatine.
  • crested flycatcher — any of various tyrant flycatchers (esp. genus Myiarchus) with a prominent crest
  • crested wheatgrass — a forage grass, Agropyron cristatum, native to Eurasia and grown in the Great Plains as pasturage, hay, and for erosion control.
  • 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
  • cytoarchitectonics — Cytoarchitecture.
  • daisywheel printer — (printer)   A kind of impact printer where the characters are arranged on the ends of the spokes of a wheel (resembling the petals on a daisy). The wheel (usually made of plastic) is rotated to select the character to print and then an electrically operated hammer mechanism bends the selected spoke forward slightly, sandwiching an ink ribbon between the character and the paper, as in a typewriter. One advantage of this arrangement over that of a typewriter is that different wheels may be inserted to produce different typefaces.
  • danish west indies — the former possession of Denmark in the W Lesser Antilles, sold to the US in 1917
  • 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
  • death-valley curve — a curve on a graph showing how the capital of a new company plotted against time declines sharply as the venture capital is used up before income reaches predicted levels
  • 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.
  • deep-sea fisherman — a person who takes part in deep-sea fishing
  • 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).
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