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17-letter words containing l, a, c, n

  • nuclear radiation — Physics. radiation in the form of elementary particles emitted by an atomic nucleus, as alpha rays or gamma rays, produced by decay of radioactive substances or by nuclear fission.
  • nuclear scientist — a scientist who studies nuclear physics
  • nuclear submarine — undersea vessel powered by atomic energy
  • nuclear threshold — the point in war at which a combatant brings nuclear weapons into use
  • 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.
  • objectionableness — The quality of being objectionable.
  • occipital condyle — a protrusion on the occipital bone of the skull that forms a joint with the first cervical vertebra, enabling the head to move relative to the neck.
  • 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 norman french — Norman French (sense 1)
  • olympic mountains — a mountain range in NW Washington: part of the Coast Range. Highest peak: Mount Olympus, 2427 m (7965 ft)
  • olympic peninsula — a large peninsula of W Washington
  • omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
  • 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.
  • onomatopoetically — the formation of a word, as cuckoo, meow, honk, or boom, by imitation of a sound made by or associated with its referent.
  • open-channel flow — Open-channel flow is a liquid flow in a channel, which has a free liquid surface.
  • opportunistically — adhering to a policy of opportunism; practicing opportunism.
  • optical astronomy — the branch of observational astronomy using telescopes to observe or photograph celestial objects in visible light.
  • optical carrier n — (networking)   (OC-n) A SONET rate of n times 51.84 megabits per second.
  • optical computing — (hardware)   (Or "Optical Signal Processing") Operating on data represented using electromagnetic radiation, e.g. visible light, instead of the electrical signals used in a conventional electronic digital computer. Electronic digital computers are built from transistors. These form components that store data and logic gates that perform the low-level Boolean operations such as AND, OR and NOT that are the basis of all digital computation. The optical equivalent requires material with a non-linear refractive index such that light beams can interact with each other to perform the same Boolean operations. Though the photons that carry optical signals offer some theoretical advantages over the electrons that carry electronic signals, there are many practical problems that would have to be overcome before optical computing could compete in terms of cost, power and speed.
  • 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.
  • osculating circle — circle of curvature.
  • otolaryngological — Pertaining to otolaryngology.
  • overreach oneself — to fail because of trying to do more than one can
  • palace revolution — a challenge to or overthrow of a sovereign or other leader by members of the ruling family or group.
  • paleoconservative — a person advocating an older, traditional type of conservatism, especially in politics.
  • panama canal zone — Canal Zone.
  • papanicolaou test — Pap test.
  • particle kinetics — Particle kinetics is the study of the movement of particles and the forces that cause this movement.
  • particularization — to make particular.
  • pascal's triangle — a triangular arrangement of the binomial coefficients of the expansion (x + y) n for positive integral values of n.
  • pashmina politics — the adoption of political policies immediately after they have gone out of fashion
  • 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.
  • pay-cable channel — a television channel that has to be paid for
  • pentachlorophenol — a white, crystalline, water-insoluble powder, C 6 Cl 5 OH, used chiefly in fungicides, disinfectants, and wood preservatives.
  • 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.
  • personality clash — friction between two people who have different personalities or points of view
  • personnel carrier — a vehicle used for transporting troops
  • phenethyl alcohol — a colorless, viscous, slightly water-soluble liquid, C 8 H 1 0 O, having a faint roselike odor: used chiefly in perfumery.
  • phenyl isocyanate — a liquid reagent, C 7 H 5 NO, having an unpleasant, irritating odor: used chiefly for identifying alcohols and amines.
  • phenylacetic acid — a white crystalline, aromatic acid, C 8 H 8 O 2 , used in the manufacture of penicillin and in perfumes.
  • phenylformic acid — benzoic acid.
  • philanthropically — of, pertaining to, engaged in, or characterized by philanthropy; benevolent: a philanthropic foundation.
  • phonetic alphabet — an alphabet containing a separate character for each distinguishable speech sound.
  • phonological rule — an operation in generative phonology that substitutes one sound or class of sounds for another in a phonological derivation.
  • physical handicap — loss of or failure to develop a specific bodily function or functions, whether of movement, sensation, coordination, or speech, but excluding mental impairments or disabilities
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