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17-letter words containing a, r, n, o

  • on the other hand — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
  • on the wrong tack — a short, sharp-pointed nail, usually with a flat, broad head.
  • on-street parking — parking (of a car, vehicle, etc) that is or is allowed to be done on a street
  • one-parent family — A one-parent family is a family that consists of one parent and his or her children living together.
  • one-time password — (security)   (OTP) A security system that requires a new password every time a user authenticates themselves, thus protecting against an intruder replaying an intercepted password. OTP generates passwords using either the MD4 or MD5 hashing algorithms. The equivalent term "S/Key", developed by Bellcore, is a trademark of Telcordia Technologies, so the name OTP is used increasingly. See RFC 1760 - "The S/KEY One-Time Password System" and RFC 1938 - "A One-Time Password System".
  • 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.
  • open-end mortgage — a mortgage agreement against which new sums of money may be borrowed under certain conditions.
  • opening arguments — the statements or arguments provided by lawyers at the beginning of a trial
  • operating theatre — An operating theatre is a special room in a hospital where surgeons carry out medical operations.
  • operation sealion — the codename for Hitler's proposed invasion (1940) of Great Britain
  • operations centre — a centre where activities of a business, organization, etc, are administrated and take place
  • opisthobranchiate — (zoology) Of or pertaining to the Opisthobranchiata.
  • 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.
  • orange flower oil — neroli oil.
  • orange free state — a province in central Republic of South Africa: a Boer republic 1854–1900; a British colony (Orange River Colony, ) 1900–10. 49,647 sq. mi. (128,586 sq. km). Capital: Bloemfontein.
  • 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.
  • organ-pipe cactus — a treelike or columnar cactus, Lemaireocereus marginatus, of Mexico, having a central, erect spine surrounded by spreading spines in clusters of five to eight, and funnel-shaped, brownish-purple flowers.
  • organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.
  • organic psychosis — a severe mental illness produced by damage to the brain, as a result of poisoning, alcoholism, disease, etc
  • organized ferment — ferment (def 1).
  • organized militia — a former military organization functioning under both state and federal authority.
  • organophosphorous — Misspelling of organophosphorus.
  • orthogonal matrix — a matrix that is the inverse of its transpose so that any two rows or any two columns are orthogonal vectors
  • orthogonalization — (mathematics) The process of converting a set of functions or vectors into orthogonal ones.
  • orthovanadic acid — an oxyacid of vanadium, known chiefly in the form of its vanadate salts. Formula: H3VO4
  • osculating circle — circle of curvature.
  • otolaryngological — Pertaining to otolaryngology.
  • otolaryngologists — Plural form of otolaryngologist.
  • otto von bismarck — Otto von [ot-oh von;; German aw-toh fuh n] /ˈɒt oʊ vɒn;; German ˈɔ toʊ fən/ (Show IPA), 1815–98, German statesman: first chancellor of modern German Empire 1871–90.
  • out of all reason — unreasonable
  • outline agreement — a contract, etc, setting out the preliminary terms or guidelines for an agreement; a preliminary agreement
  • over-appreciation — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
  • over-compensation — a pronounced striving to neutralize and conceal a strong but unacceptable character trait by substituting for it an opposite trait.
  • over-conservative — disposed to preserve existing conditions, institutions, etc., or to restore traditional ones, and to limit change.
  • overconcentration — the act of concentrating; the state of being concentrated.
  • overdetermination — the concept that a single emotional symptom or event, as a dream or a slip of the tongue, may be caused by more than one factor.
  • 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
  • oversquare engine — An oversquare engine is an engine which has a cylinder bore that is larger than its stroke.
  • oyer and terminer — (in some U.S. states) any of various higher criminal courts.
  • pacific northwest — the region of North America lying north of the Columbia River and west of the Rockies
  • pair annihilation — Physics. annihilation (def 3a).
  • 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.
  • pan potentiometer — a control on a stereo sound mixing desk by means of which the relative levels in right- and left-hand channels can be adjusted and hence the apparent position of the recorded or broadcast sound source within the stereo panorama can be controlled
  • parathyroid gland — any of several small oval glands usually lying near or embedded in the thyroid gland.
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