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15-letter words containing t, e, r

  • 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.
  • database server — A stand-alone computer in a local area network that holds and manages the database. It implies that database management functions, such as locating the actual record being requested, is performed in the server computer. Contrast with file server, which acts as a remote disk drive and requires that large parts of the database, for example, entire indexes, be transmitted to the user's computer where the real database management tasks are performed. First-generation personal computer database software was not designed for a network; thus, modified versions of the software released by the vendors employed the file server concept. Second-generation products, designed for local area networks, perform the management tasks in the server where they should be done, and consequently are turning the file server into a database server.
  • daughter-in-law — Someone's daughter-in-law is the wife of their son.
  • davenport table — a table with drawers, having drop leaves at both ends, often placed in front of or behind a sofa.
  • day of the lord — Also called Day of Yahweh. (in Old Testament eschatology) a day of final judgment. Amos 5:18–21; Ezek. 30.
  • dead letter box — a place where messages and other material can be left and collected secretly without the sender and the recipient meeting
  • dead-end street — a street blocked at one end
  • deagglomeration — Deagglomeration is the process of breaking up agglomerates.
  • debenture stock — stock that pays a fixed rate of interest at fixed intervals
  • debt counsellor — a person who advises people who are in debt on how to deal with their debt and get out of it
  • debureaucratize — to divide an administrative agency or office into bureaus.
  • decarboxylation — the removal or loss of a carboxyl group from an organic compound
  • decarburization — The act, process, or result of decarburizing.
  • decertification — The act or process of decertifying.
  • decipherability — to make out the meaning of (poor or partially obliterated writing, etc.): to decipher a hastily scribbled note.
  • decision theory — the study of strategies for decision-making under conditions of uncertainty in such a way as to maximize the expected utility
  • deck department — the part of a ship's crew, from the captain down, concerned with running the ship but not with heavy machinery or catering
  • deconcentrating — Present participle of deconcentrate.
  • deconcentration — the act of decentralizing or the state of becoming less concentrated in one area
  • decorated style — a 14th-century style of English architecture characterized by the ogee arch, geometrical tracery, and floral decoration
  • decorative arts — art that is meant to be useful as well as beautiful, as ceramics, furniture, jewelry, and textiles.
  • decree absolute — A decree absolute is the final order made by a court in a divorce case which ends a marriage completely.
  • decubitus ulcer — a chronic ulcer of the skin and underlying tissues caused by prolonged pressure on the body surface of bedridden patients
  • deculturalizing — to expose or subject to the influence of culture.
  • dedifferentiate — to undergo the process of dedifferentiation
  • deformalization — to make less formal; reduce the strictness, preciseness, etc., of.
  • defragmentation — (computing) The action of defragmenting, particularly with respect to a computer disk or drive.
  • defunct process — zombie process
  • degenerationist — a person who believes in the evolutionary decline of a species
  • deglamorization — the act or process of making less glamorous
  • dehydrogenating — Present participle of dehydrogenate.
  • dehydrogenation — to remove hydrogen from (a compound).
  • deindustrialise — Alternative spelling of deindustrialize.
  • deindustrialize — to reduce the importance of manufacturing industry in the economy of (a nation or area)
  • delayed neutron — a neutron produced in a nuclear reactor by the breakdown of a fission product and released a short time after neutrons produced in the primary process
  • deleteriousness — The quality of being deleterious.
  • delivery system — any means or process for conveying a product or service to a recipient.
  • delsarte method — a theory or system devised by François Delsarte for improving musical and dramatic expression through the mastery of various bodily attitudes and gestures.
  • delsarte system — a method of teaching drama and dancing based on the exercises of Alexandre Delsarte (1811–71), famous teacher at the Paris Conservatoire
  • 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)
  • dematerializing — Present participle of dematerialize.
  • demi-vegetarian — a person who eats poultry and fish, but no red meat
  • democratifiable — able to be made into a democracy
  • democratisation — Alternative spelling of democratization.
  • democratization — The introduction of democracy, its functions or principles, to an area or country which did not have democracy previously.
  • demolition work — the work of knocking down buildings
  • demonstrability — The quality of being demonstrable.
  • demonstrational — the act or circumstance of proving or being proved conclusively, as by reasoning or a show of evidence: a belief incapable of demonstration.
  • demonstratively — characterized by or given to open exhibition or expression of one's emotions, attitudes, etc., especially of love or affection: She wished her fiancé were more demonstrative.
  • dendrochemistry — (chemistry) the science, related to dendrochronology, that uses the analysis of trace minerals in tree rings to study air pollution in past times.
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