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20-letter words containing h, o, t, u

  • communication theory — information theory.
  • computability theory — (mathematics)   The area of theoretical computer science concerning what problems can be solved by any computer. A function is computable if an algorithm can be implemented which will give the correct output for any valid input. Since computer programs are countable but real numbers are not, it follows that there must exist real numbers that cannot be calculated by any program. Unfortunately, by definition, there isn't an easy way of describing any of them! In fact, there are many tasks (not just calculating real numbers) that computers cannot perform. The most well-known is the halting problem, the busy beaver problem is less famous but just as fascinating.
  • consultant physician — a physician who has attained the rank of consultant in a particular speciality
  • continuum hypothesis — the assertion that there is no set whose cardinality is greater than that of the integers and smaller than that of the reals
  • contradistinguishing — Present participle of contradistinguish.
  • council of the reich — the Reichsrat.
  • council of the union — the legislature of the former Soviet Union and its successor states, consisting of an upper house (Soviet of the Union or Council of the Union) whose delegates are elected on the basis of population, and a lower house (Soviet of Nationalities or Council of Nationalities) whose delegates are elected to represent the various nationalities.
  • count one's chickens — If you say that someone is counting their chickens, you mean that they are assuming that they will be successful or get something, when this is not certain.
  • curry favour with sb — If one person tries to curry favour with another, they do things in order to try to gain their support or co-operation.
  • cut one's own throat — to be the means of one's own ruin
  • cut the gordian knot — to find a quick, bold solution for a perplexing problem
  • de la madrid hurtado — Miguel [mee-gel] /miˈgɛl/ (Show IPA), 1934–2012, Mexican political leader: president 1982–88.
  • deduct from the bill — If you deduct an item or expense from the bill at a restaurant or hotel, you take a charge out of a customer's bill.
  • diammonium phosphate — a white, crystalline, water-soluble compound, (NH 4) 2 HPO 4 , used as fertilizer, in fire extinguishers, etc.
  • diamond in the rough — a diamond in its natural state
  • dichotomous question — a question to which there can only be one of two answers, often "yes" or "no"
  • differential housing — the casing that houses the differential of a motor vehicle
  • diisobutyl phthalate — a clear, colorless liquid, C 14 H 26 O 4 , used chiefly as a plasticizer for nitrocellulose.
  • diophantine equation — an equation involving more than one variable in which the coefficients of the variables are integers and for which integral solutions are sought.
  • discounted cash flow — a technique for appraising an investment that takes into account the different values of future returns according to when they will be received
  • distribution channel — trade: retailer
  • doctor of the church — a title conferred on an ecclesiastic for great learning and saintliness.
  • double-aspect theory — a monistic theory that holds that mind and body are not distinct substances but merely different aspects of a single substance
  • dry-bulb thermometer — a thermometer having a dry bulb: used in conjunction with a wet-bulb thermometer in a psychrometer.
  • eat out of sb's hand — If you have someone eating out of your hand, they are completely under your control.
  • eight queens problem — eight queens puzzle
  • elizabeth of hungary — Saint. 1207–31, Hungarian princess who devoted herself to charity and asceticism. Feast day: Nov 17 and 19
  • erythema infectiosum — a mild infectious disease of childhood, caused by a virus, characterized by fever and a red rash spreading from the cheeks to the limbs and trunk
  • flavour of the month — If you think that something or someone is very popular at a particular time, you can say that they are flavour of the month.
  • fold-and-thrust belt — a linear or arcuate region of the earth's surface that has been subjected to severe folding and thrust faulting
  • fontainebleau school — a group of artists, many of them Italian and Flemish, who worked on the decorations of the palace of Fontainebleau in the 16th century.
  • fourteenth amendment — an amendment to the U.S. Constitution, ratified in 1868, defining national citizenship and forbidding the states to restrict the basic rights of citizens or other persons.
  • fourth international — a loose federation of small groups of radical socialists formed in 1936 under the leadership of Leon Trotsky and hostile to the Soviet Union. Compare international (def 6).
  • frankfurt horizontal — Craniometry. the plane established when right and left poria and left orbitale are in the same horizontal plane.
  • freight pass-through — a special allowance or discounted price given a bookseller or bookstore by a publishing house for paying the freight charge on a shipment of books ordered: so called because the shipping charge is passed on to the consumer by an increase in the suggested retail price for each book. Abbreviation: FPT.
  • full to the gunwales — completely full; full to overflowing
  • geoffrey of monmouth — 1100?–1154, English chronicler.
  • get one's hackles up — to become tense with anger; bristle
  • gill-over-the-ground — ground ivy.
  • glucosamine sulphate — a compound used in some herbal remedies and dietary supplements, esp to strengthen joint cartilage
  • grand unified theory — a possible future quantum field theory that would encompass both the electroweak theory and quantum chromodynamics. Abbreviation: GUT.
  • hampton court palace — a royal palace in Hampton, London, built in 1515 by Cardinal Wolsey
  • happy hunting ground — the North American Indian heaven, conceived of as a paradise of hunting and feasting for warriors and hunters.
  • hate a person's guts — to dislike a person very strongly
  • health questionnaire — A health questionnaire is a list of questions about someone's health issued by underwriters before accepting a person as a risk.
  • helmeted guinea fowl — the common guinea fowl in its wild state.
  • hexafluoroantimonate — (inorganic chemistry) The anion SbF6- or any salt containing this anion; it is used as an acidic catalyst in epoxide opening reactions.
  • hierarchical routing — The complex problem of routing on large networks can be simplified by breaking a network into a hierarchy of smaller networks, where each level is responsible for its own routing. The Internet has, basically, three levels: the backbones, the mid-levels, and the stub networks. The backbones know how to route between the mid-levels, the mid-levels know how to route between the sites, and each site (being an autonomous system) knows how to route internally. See also Exterior Gateway Protocol, Interior Gateway Protocol, transit network.
  • high-density housing — housing with a higher population density than the average, typically blocks of flats, and tower blocks
  • hit the panic button — an alarm button for use in an emergency, as to summon help.
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