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17-letter words containing r, e, n, a, l

  • nuclear-free zone — any area in which nuclear weapons, power plants, or materials are not allowed.
  • nuclear-isomerism — Chemistry. the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism) as CH 3 OCH 3 and CH 3 CH 2 OH, or in the arrangement of their atoms in space and therefore in one or more properties. Compare optical isomerism, stereoisomerism.
  • numerical control — control of a machine tool, or other device used in a manufacturing process, by a computer, other control circuitry, or recorded digital commands.
  • oceanographically — In terms of oceanography.
  • off-year election — (in the US) an election held in a year when a presidential election does not take place
  • old age pensioner — An old age pensioner is a person who is old enough to receive an pension from their employer or the government.
  • old norman french — Norman French (sense 1)
  • old red sandstone — a thick sequence of sedimentary rock (generally, but not always, red) deposited in Britain and NW Europe during the Devonian period
  • omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
  • on the barrelhead — upon being presented for sale; at the time of delivery
  • one-parent family — A one-parent family is a family that consists of one parent and his or her children living together.
  • online dictionary — a dictionary that is available on the Internet or World Wide Web and accessed through a Web browser using a computer or a mobile device, primarily by typing a query term into a search box on the site. Online dictionaries like Dictionary.com offer immediate, direct access through large databases to a word's spelling and meanings, plus a host of ancillary information, including its variant spellings, pronunciation, inflected forms, origin, and derived forms, as well as supplementary notes on matters of interest or concern about how the word is used: Some people think online dictionaries will make print dictionaries obsolete.
  • operation sealion — the codename for Hitler's proposed invasion (1940) of Great Britain
  • optical carrier n — (networking)   (OC-n) A SONET rate of n times 51.84 megabits per second.
  • orange flower oil — neroli oil.
  • oregon crab apple — a shrub or small tree, Malus fusca, of the rose family, of the northwestern coast of North America, having hairy leaves, white flowers, and yellow or green oblong fruit.
  • organized militia — a former military organization functioning under both state and federal authority.
  • osculating circle — circle of curvature.
  • out of all reason — unreasonable
  • outline agreement — a contract, etc, setting out the preliminary terms or guidelines for an agreement; a preliminary agreement
  • overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
  • overreach oneself — to fail because of trying to do more than one can
  • painted greenling — a greenling, Oxylebius pictus, inhabiting the Pacific coastal waters of North America, having a whitish body marked with black bands.
  • palace revolution — a challenge to or overthrow of a sovereign or other leader by members of the ruling family or group.
  • paleoanthropology — the study of the origins and predecessors of the present human species, using fossils and other remains.
  • paleoconservative — a person advocating an older, traditional type of conservatism, especially in politics.
  • palette of narmer — a king of Egypt identified by modern scholars as the Menes of tradition and depicted as the unifier of Upper and Lower Egypt on an ancient slate tablet (Narmer Palette or Palette of Narmer) c3200 b.c. with relief carvings on both sides.
  • parallel universe — Physics. any of a hypothetical collection of undetectable universes that are like our known universe but have branched off from our universe due to a quantum-level event. See also multiverse.
  • parliamentary law — the body of rules, usages, and precedents that governs proceedings of legislative and deliberative assemblies.
  • particle kinetics — Particle kinetics is the study of the movement of particles and the forces that cause this movement.
  • parts per million — the number of units (of a substance) present in a million units of another substance
  • pascal's triangle — a triangular arrangement of the binomial coefficients of the expansion (x + y) n for positive integral values of n.
  • paternalistically — the system, principle, or practice of managing or governing individuals, businesses, nations, etc., in the manner of a father dealing benevolently and often intrusively with his children: The employees objected to the paternalism of the old president.
  • pauline privilege — (in canon law) the privilege given to converts to dissolve a marriage with an unbaptized spouse if either obstructs the religious practices of the other.
  • paymaster general — a government minister responsible for making payments by government departments
  • peloponnesian war — a war between Athens and Sparta, 431–404 b.c., that resulted in the transfer of hegemony in Greece from Athens to Sparta.
  • pentachlorophenol — a white, crystalline, water-insoluble powder, C 6 Cl 5 OH, used chiefly in fungicides, disinfectants, and wood preservatives.
  • pentylenetetrazol — a white, crystalline, bitter-tasting, water-soluble powder, C 6 H 1 0 N 4 , used as a respiratory and circulatory stimulant, especially in the treatment of barbiturate poisoning, and to induce a convulsive state in the treatment of certain mental diseases.
  • peripheral vision — all that is visible to the eye outside the central area of focus; side vision.
  • perpetual spinach — a variety of spinach that keeps producing edible leaves
  • personal computer — a compact computer that uses a microprocessor and is designed for individual use, as by a person in an office or at home or school, for such applications as word processing, data management, financial analysis, or computer games. Abbreviation: PC.
  • personal distance — personal space.
  • personal equation — the tendency to personal bias that accounts for variation in interpretation or approach and for which allowance must be made.
  • personal property — an estate or property consisting of movable articles both corporeal, as furniture or jewelry, or incorporeal, as stocks or bonds (distinguished from real property).
  • personality clash — friction between two people who have different personalities or points of view
  • personnel carrier — a vehicle used for transporting troops
  • personnel manager — head of Human Resources department
  • phenylformic acid — benzoic acid.
  • phonological rule — an operation in generative phonology that substitutes one sound or class of sounds for another in a phonological derivation.
  • pillar-and-breast — room-and-pillar.
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