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18-letter words containing h, a, n, d, r

  • 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.
  • 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.
  • 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.
  • cot death syndrome — the unexplained sudden death of an infant during sleep
  • 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.
  • 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
  • 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).
  • destruct mechanism — a mechanism that causes the destruction of a rocket or missile when activated
  • determinate growth — growth of a plant stem that is terminated early by the formation of a bud
  • devil's paintbrush — a perennial European hawkweed (Hieracium aurantiacum) with leafless flower stalks bearing a cluster of orange-red heads: now a common weed in N U.S. and Canada
  • dielectric heating — the heating of a nonconducting substance caused by dielectric loss when the material is placed in a variable electric field.
  • dimethyltryptamine — a hallucinogenic drug, C 12 H 16 N 2 , with an action of short duration. Abbreviation: DMT.
  • diphtheria vaccine — a vaccine used to produce immunity against diphtheria
  • 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.
  • 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.
  • dodecadodecahedron — (geometry) A nonconvex polyhedron with twenty-four faces, thirty vertices, and sixty edges.
  • 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.
  • each and every one — all
  • every now and then — from time to time; occasionally
  • fall to the ground — (of a plan, theory, etc) to be rendered invalid, esp because of lack of necessary information
  • farmer in the dell — a game, accompanied by a song with several verses, in which one person, designated as the farmer, occupies the center of a circle of persons and is joined in the circle by other players designated as wife, child, nurse, cat, rat, and cheese, these then leaving the circle in order except for the one designated as cheese, who is left standing alone in the circle at the end.
  • feldenkrais method — a system of gentle movements that promote flexibility, coordination, and self-awareness
  • ferdinand schiller — Ferdinand Canning Scott [kan-ing] /ˈkæn ɪŋ/ (Show IPA), 1864–1937, English philosopher in the U.S.
  • fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
  • from hand to mouth — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
  • get the upper hand — gain advantage
  • gladden sb's heart — If you say that something gladdens someone's heart, you mean that it makes them feel pleased and hopeful.
  • grandfather clause — U.S. History. a clause in the constitutions of some Southern states after 1890 intended to permit whites to vote while disfranchising blacks: it exempted from new literacy and property qualifications for voting those men entitled to vote before 1867 and their lineal descendants.
  • green-backed heron — a small, American heron, Butorides striatus, having glossy green wings.
  • handkerchief table — corner table.
  • handlebar mustache — A handlebar mustache is a long thick mustache with curled ends.
  • hardy-weinberg law — a principle stating that in an infinitely large, randomly mating population in which selection, migration, and mutation do not occur, the frequencies of alleles and genotypes do not change from generation to generation.
  • harnessed antelope — any African antelope of the genus Tragelaphus, especially the bushbuck, having the body marked with white stripes and spots that resemble a harness, and, in the male, long, gently spiraling horns.
  • head and shoulders — If you say that someone or something stands head and shoulders above other people or things, you mean that they are a lot better than them.
  • hearts and flowers — maudlin sentimentality: The play is a period piece, full of innocence abused and hearts and flowers.
  • heating degree-day — a degree-day below the standard temperature of 65°F or 19°C, used in estimating fuel consumption.
  • hedge fund manager — a person in charge of managing a hedge fund and making its investments
  • high-grade mineral — a mineral fulfilling certain conditions as regards purity or other physical properties
  • hit-and-run driver — sb: leaves accident scene
  • hither and thither — to or toward this place: to come hither.
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