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18-letter words containing h, o, n, e, d

  • 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).
  • dendrochronologist — One who carries out dendrochronology.
  • desktop publishing — Desktop publishing is the production of printed materials such as newspapers and magazines using a desktop computer and a laser printer, rather than using conventional printing methods. The abbreviation DTP is also used.
  • determinate growth — growth of a plant stem that is terminated early by the formation of a bud
  • didaskaleinophobia — The fear of going to school.
  • dig in one's heels — to refuse to give up or modify one's opinion, policy, attitude, etc., esp. when faced with opposition
  • dig one's heels in — to refuse stubbornly to move or be persuaded
  • 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.
  • dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
  • 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.
  • do one's own thing — a material object without life or consciousness; an inanimate object.
  • 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.
  • double white lines — parallel white lines on a roadway, usually indicating a barrier to crossing
  • down to the ground — thoroughly; completely
  • 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.
  • 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.
  • duchenne dystrophy — the most common form of muscular dystrophy, usually affecting only boys
  • duty-free shopping — the making of duty-free purchases
  • each and every one — all
  • 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.
  • ethnomethodologist — A person engaged in ethnomethodology.
  • 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
  • feldenkrais method — a system of gentle movements that promote flexibility, coordination, and self-awareness
  • fishing expedition — a legal proceeding mainly for the purpose of interrogating an adversary, or of examining his or her property and documents, in order to gain useful information.
  • fly off the handle — a part of a thing made specifically to be grasped or held by the hand.
  • fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
  • from the ground up — the solid surface of the earth; firm or dry land: to fall to the ground.
  • get off the ground — project: start well
  • give one's hand on — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
  • gone with the wind — a novel (1936) by Margaret Mitchell.
  • goods and chattels — personal property
  • green-backed heron — a small, American heron, Butorides striatus, having glossy green wings.
  • hand it to someone — to give credit to someone
  • 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.
  • hebdomadal council — the governing council or senate of Oxford University
  • heptadecanoic acid — a colourless crystalline water-insoluble carboxylic acid used in organic synthesis. Formula: CH3(CH2)15COOH
  • high speed connect — (hardware)   (HSC) A Hewlett-Packard bus like EISA.
  • hold a reservation — If a hotel holds a reservation, it keeps a room for someone, and does not give it to someone else.
  • hold up one's head — to be unashamed
  • homelands movement — the programme to resettle native Australians on their tribal lands
  • honest-to-goodness — real or genuine.
  • honorable ordinary — any of the ordinaries believed to be among those that are oldest or that were the source of the other ordinaries, as the chief, pale, fess, bend, chevron, cross, and saltire.
  • honour moderations — (at Oxford University) the first public examination, in which candidates are placed into one of three classes of honours
  • hot-water cylinder — a vertical cylindrical tank for storing hot water, esp an insulated one made of copper used in a domestic hot-water system
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