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15-letter words containing r, a, d, i, c

  • pitcairn island — a small British island in the S Pacific, SE of Tuamotu Archipelago: settled 1790 by mutineers of the Bounty. 2 sq. mi. (5 sq. km).
  • pneumatic drill — a percussive power drill powered by compressed air
  • polychlorinated — having multiple chlorine atoms
  • predicate logic — (logic)   (Or "predicate calculus") An extension of propositional logic with separate symbols for predicates, subjects, and quantifiers. For example, where propositional logic might assign a single symbol P to the proposition "All men are mortal", predicate logic can define the predicate M(x) which asserts that the subject, x, is mortal and bind x with the universal quantifier ("For all"): All x . M(x) Higher-order predicate logic allows predicates to be the subjects of other predicates.
  • prejudicialness — the trait of being prejudicial
  • premodification — an act or instance of modifying.
  • primary product — a product consisting of a natural raw material; an unmanufactured product
  • prince's island — former name of Príncipe.
  • principal ideal — the smallest ideal containing a given element in a ring; an ideal in a ring with a multiplicative identity, obtained by multiplying each element of the ring by one specified element.
  • pseudo-artistic — conforming to the standards of art; satisfying aesthetic requirements: artistic productions.
  • pseudo-critical — inclined to find fault or to judge with severity, often too readily.
  • pseudo-dramatic — of or relating to the drama.
  • pseudo-romantic — of, relating to, or of the nature of romance; characteristic or suggestive of the world of romance: a romantic adventure.
  • psychedelicware — /si:"k*-del"-ik-weir/ [UK] Synonym display hack. See also smoking clover.
  • pyramidal tract — any of four tracts of descending motor fibers that extend in pairs down each side of the spinal column and function in voluntary movement.
  • pyrogallic acid — pyrogallol
  • pyrogallic-acid — a white, crystalline, water-soluble, poisonous, solid, phenolic compound, C 6 H 3 (OH) 3 , obtained by heating gallic acid and water: used chiefly as a developer in photography, as a mordant for wool, in dyeing, and in medicine in the treatment of certain skin conditions.
  • pyrometric bead — (in a kiln) a ball of material that indicates by changing color that a certain temperature has been reached.
  • quadric surface — a three-dimensional surface whose equation is a quadratic equation.
  • quadruplication — one of four copies or identical items, especially copies of typewritten material.
  • quick-and-dirty — Informal. slipshod.
  • rack-and-pinion — of or relating to a mechanism in which a rack engages a pinion: rack-and-pinion steering.
  • radial velocity — the component of the motion of a star away from or toward the earth along its line of sight, expressed in miles or kilometers per second and determined by the shift in the wavelength of light emitted by the star.
  • radio announcer — someone who broadcasts or presents radio programmes
  • radio broadcast — sth transmitted via radio signal
  • radio frequency — the frequency of the transmitting waves of a given radio message or broadcast.
  • radio telescope — a system consisting of an antenna, either parabolic or dipolar, used to gather radio waves emitted by celestial sources and bring them to a receiver placed in the focus.
  • radiochemically — by radiochemical means or methods; from a radiochemical perspective
  • radiometrically — using a radiometric method, in terms of radiometry
  • radiomicrometer — an instrument for measuring small amounts of radiant energy, consisting of a sensitive thermocouple connected to a galvanometer.
  • radioprotection — protection against radiation
  • radioprotective — giving protection against the effects of radiation
  • radiotechnology — the technical application of any form of radiation to industry.
  • radiotelemetric — of or relating to radiotelemetry
  • re-adjudication — an act of adjudicating.
  • reaccreditation — the act or process of reaccrediting something or someone
  • recoil-operated — employing the recoil force of an explosive projectile to prepare the firing mechanism for the next shot.
  • recombinant dna — DNA in which one or more segments or genes have been inserted, either naturally or by laboratory manipulation, from a different molecule or from another part of the same molecule, resulting in a new genetic combination.
  • reconsideration — to consider again, especially with a view to change of decision or action: to reconsider a refusal.
  • reconsolidation — an act or instance of consolidating; the state of being consolidated; unification: consolidation of companies.
  • record-breaking — top, most successful
  • recording angel — an angel who supposedly keeps a record of every person's good and bad acts
  • red-back spider — a venomous spider, Latrodectus hasselti, of Australia and New Zealand, related to the black widow spider and having a bright red stripe on the back.
  • redial facility — a means of dialling a number again by pressing a button
  • rediscount rate — the rate charged by the Federal Reserve Bank to member banks for rediscounting commercial paper.
  • redocumentation — The creation or revision of a semantically equivalent representation within the same relative abstraction level. The resulting forms of representation are usually considered alternate views intended for a human audience.
  • reduction ratio — an expression of the number of times by which an original document has been reduced in a microcopy.
  • reduplicatively — in a reduplicative manner
  • residual income — the remaining income (of a business or person) after necessary debts, expenses, etc, have been paid
  • restricted area — out of bounds to military personnel
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