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15-letter words containing a, e, c, u

  • data redundancy — (data, communications, storage)   Any technique that stores or transmits extra, derived data that can be used to detect or repair errors, either in hardware or software. Examples are parity bits and the cyclic redundancy check. If the cost of errors is high enough, e.g. in a safety-critical system, redundancy may be used in both hardware AND software with three separate computers programmed by three separate teams ("triple redundancy") and some system to check that they all produce the same answer, or some kind of majority voting system. The term is not typically used for other, less beneficial, duplication of data. 2.   (communications)   The proportion of a message's gross information content that can be eliminated without losing essential information. Technically, redundancy is one minus the ratio of the actual uncertainty to the maximum uncertainty. This is the fraction of the structure of the message which is determined not by the choice of the sender, but rather by the accepted statistical rules governing the choice of the symbols in question.
  • dead-cat bounce — a temporary recovery in prices following a substantial fall as a result of speculators buying stocks they have already sold rather than as a result of a genuine reversal of the downward trend
  • dean of faculty — the president of the Faculty of Advocates in Scotland
  • debureaucratize — to divide an administrative agency or office into bureaus.
  • decarburization — The act, process, or result of decarburizing.
  • decasualization — the replacement of casual workers by permanent employees
  • decommunization — the act or process of decommunizing
  • decontextualise — Alternative spelling of decontextualize.
  • decontextualize — to consider (something) in isolation from its usual context
  • decree absolute — A decree absolute is the final order made by a court in a divorce case which ends a marriage completely.
  • deculturalizing — to expose or subject to the influence of culture.
  • definite clause — (logic)   A Horn clause that has exactly one positive literal.
  • delta reduction — (theory)   In lambda-calculus extended with constants, delta reduction replaces a function applied to the required number of arguments (a redex) by a result. E.g. plus 2 3 --> 5. In contrast with beta reduction (the only kind of reduction in the pure lambda-calculus) the result is not formed simply by textual substitution of arguments into the body of a function. Instead, a delta redex is matched against the left hand side of all delta rules and is replaced by the right hand side of the (first) matching rule. There is notionally one delta rule for each possible combination of function and arguments. Where this implies an infinite number of rules, the result is usually defined by reference to some external system such as mathematical addition or the hardware operations of some computer. For other types, all rules can be given explicitly, for example Boolean negation: not True = False not False = True (1997-02-20)
  • demulsification — to break down (an emulsion) into separate substances incapable of re-forming the emulsion that was broken down.
  • deoch-an-doruis — a parting drink or stirrup cup
  • deposit account — A deposit account is a type of bank account where the money in it earns interest.
  • deus ex machina — (in ancient Greek and Roman drama) a god introduced into a play to resolve the plot
  • discombobulated — to confuse or disconcert; upset; frustrate: The speaker was completely discombobulated by the hecklers.
  • discombobulates — Third-person singular simple present indicative form of discombobulate.
  • discount market — a trading market in which notes, bills, and other negotiable instruments are discounted.
  • discountenanced — Simple past tense and past participle of discountenance.
  • discountenances — Third-person singular simple present indicative form of discountenance.
  • disgracefulness — The state or quality of being disgraceful.
  • distance runner — a participant in distance races.
  • do an injustice — If you say that someone has done you an injustice, you mean that they have been unfair in the way that they have judged you or treated you.
  • document reader — a device that reads and inputs into a computer marks and characters on a special form, as by optical or magnetic character recognition
  • documentational — the use of documentary evidence.
  • double saucepan — a cooking utensil consisting of two saucepans, one fitting inside the other. The bottom saucepan contains water that, while boiling, gently heats food in the upper pan
  • drug trafficker — someone that trades in illegal drugs
  • duque de caxias — a city in SE Brazil: a suburb of Rio de Janeiro.
  • dutchman's-pipe — a climbing vine, Aristolochia durior, of the birthwort family, having large, heart-shaped leaves and brownish-purple flowers of a curved form suggesting a tobacco pipe.
  • eastern sudanic — a group of languages belonging to the Nilo-Saharan family, spoken in eastern and central Africa and including the Nilotic languages.
  • echinodermatous — belonging or pertaining to the echinoderms.
  • eclipse plumage — the dull plumage developed in some brightly colored birds after the breeding season.
  • economy measure — any method of reducing expenditure and hence saving money
  • efficaciousness — capable of having the desired result or effect; effective as a means, measure, remedy, etc.: The medicine is efficacious in stopping a cough.
  • efficient cause — a person or thing that acts, happens, or exists in such a way that some specific thing happens as a result; the producer of an effect: You have been the cause of much anxiety. What was the cause of the accident?
  • elastic rebound — a theory of earthquakes that envisages gradual deformation of the fault zone without fault slippage until friction is overcome, when the fault suddenly slips to produce the earthquake
  • electric guitar — electrically-amplified guitar
  • electrosurgical — Relating to electrosurgery.
  • elegiac couplet — a couplet composed of a dactylic hexameter followed by a dactylic pentameter
  • eleutherodactyl — (of a bird) having the hind toe free
  • eleutheromaniac — Having a passionate mania for freedom.
  • enterobacterium — (microbiology) Any of very many gram-negative rod-shaped bacteria of the family Enterobacteriaceae, many of which are pathogenic.
  • escape sequence — (character)   (Or "escape code") A series of characters starting with the escape character (ASCII 27). Escape sequences are often used to control display devices such as VDUs. An escape sequence might change the colour of subsequent text, reassign keys on the keyboard, change printer settings or reposition the cursor. The escape sequences of the DEC vt100 video terminal have become a de facto standard for this purpose. The term is also used for any sequence of characters that temporarily suspends normal processing of a stream of characters to perform some special function. For example, the Hayes modem uses the sequence "+++" to escape to command mode in which characters are interpreted as commands to the modem itself rather than as data to pass through.
  • eudiometrically — By means of or in terms of eudiometry.
  • euphemistically — In a euphemistic manner.
  • eureka stockade — a violent incident in Ballarat, Australia, in 1854 between gold miners and the military, as a result of which the miners won their democratic rights in the state parliament
  • eurocheque card — a card that must be shown along with Eurocheques when using them to pay for goods or services. Eurocheque cards were withdrawn in 2002
  • eustachian tube — part of the ear
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