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20-letter words containing r, h, e, u

  • clothes manufacturer — a business concern that manufactures clothes
  • 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.
  • council of the reich — the Reichsrat.
  • crime and punishment — a novel (1866) by Feodor Dostoevsky.
  • 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.
  • diamond in the rough — a diamond in its natural state
  • differential housing — the casing that houses the differential of a motor vehicle
  • disruptive discharge — the sudden, large increase in current through an insulating medium resulting from complete failure of the medium under electrostatic stress.
  • 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.
  • ecumenical patriarch — the patriarch of Constantinople, regarded as the highest dignitary of the Greek Orthodox Church.
  • 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
  • epidural anaesthesia — numbing injection in the spine
  • 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
  • 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).
  • frame check sequence — (communications)   (FCS) The extra characters added to a frame for error detection and correction(?). FCS is used in X.25, HDLC, Frame Relay, and other data link layer protocols.
  • freefall parachuting — a variety of parachuting in which the jumper manoeuvres in free fall before opening the parachute
  • 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.
  • friedrich max müller — Friedrich Max [free-drik maks;; German free-drikh mahks] /ˈfri drɪk mæks;; German ˈfri drɪx mɑks/ (Show IPA), 1823–1900, English Sanskrit scholar and philologist born in Germany.
  • fundamental research — research carried out to deepen understanding of the fundamental or basic principles of something
  • general headquarters — the headquarters of the commanding officer of a large military force. Abbreviation: GHQ, G.H.Q.
  • geoffrey of monmouth — 1100?–1154, English chronicler.
  • get away with murder — Law. the killing of another human being under conditions specifically covered in law. In the U.S., special statutory definitions include murder committed with malice aforethought, characterized by deliberation or premeditation or occurring during the commission of another serious crime, as robbery or arson (first-degree murder) and murder by intent but without deliberation or premeditation (second-degree murder)
  • gill-over-the-ground — ground ivy.
  • grand unified theory — a possible future quantum field theory that would encompass both the electroweak theory and quantum chromodynamics. Abbreviation: GUT.
  • greenwich hour angle — hour angle measured from the meridian of Greenwich, England.
  • grievous bodily harm — law: serious injury
  • guarded horn clauses — (language)   (GHC) A parallel dialect of Prolog by K. Ueda in which each clause has a guard. GHC is similar to Parlog. When several clauses match a goal, their guards are evaluated in parallel and the first clause whose guard is found to be true is used and others are rejected. It uses committed-choice nondeterminism. See also FGHC, KL1.
  • hampton court palace — a royal palace in Hampton, London, built in 1515 by Cardinal Wolsey
  • hard gelatin capsule — A hard gelatin capsule is a type of capsule that is usually used to contain medicine in the form of dry powder or very small pellets.
  • harvard architecture — (architecture)   A computer architecture in which program instructions are stored in different memory from data. Each type of memory is accessed via a separate bus, allowing instructions and data to be fetched in parallel. Contrast: von Neumann architecture.
  • 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.
  • 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.
  • highbush huckleberry — black huckleberry.
  • hindu-arabic numeral — Arabic numeral.
  • hipparchus satellite — an astronometric satellite launched in 1989 by the European Space Agency that measured the position, proper motion, and brightness of 118 218 stars down to 12th magnitude and the magnitude and colour of a million stars down to 10th magnitude
  • hire-purchase system — a system of payment for a commodity in regular installments while using it.
  • hit-and-run accident — a motor-vehicle accident in which the driver leaves the scene without stopping to give assistance, inform the police, etc
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