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17-letter words containing p, i, r, o

  • neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
  • neurophysiologist — the branch of physiology dealing with the functions of the nervous system.
  • neuropsychiatrist — A medical doctor specializing in neuropsychiatry; a medical doctor dealing with disorders that have both neurological and psychiatric features.
  • neuropsychologist — A neurologist or psychologist whose speciality is neuropsychology.
  • new expressionism — neo-expressionism.
  • nitrogen peroxide — the equilibrium mixture of nitrogen dioxide and dinitrogen tetroxide
  • non-comprehension — the act or process of comprehending.
  • non-corresponding — identical in all essentials or respects: corresponding fingerprints.
  • non-profit-making — A non-profit-making organization or charity is not run with the intention of making a profit.
  • non-proliferation — Non-proliferation is the limiting of the production and spread of something such as nuclear or chemical weapons.
  • non-reciprocating — to give, feel, etc., in return.
  • non-stereotypical — a process, now often replaced by more advanced methods, for making metal printing plates by taking a mold of composed type or the like in papier-mâché or other material and then taking from this mold a cast in type metal.
  • non-thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
  • nonimpact printer — a printer that creates images without mechanically impacting the page, as an ink-jet or laser printer.
  • nonproductiveness — The quality of being nonproductive.
  • nonrepresentative — a person or thing that represents another or others.
  • noun pre-modifier — a noun that occurs before and modifies another noun, as toy in toy store or tour in tour group.
  • oceanographically — In terms of oceanography.
  • oil of turpentine — a colorless, flammable, volatile essential oil having a penetrating odor and a pungent, bitter taste, obtained from turpentine oleoresin by distillation: used in paints and varnishes, and in medicine as a carminative, vermifuge, expectorant, rubefacient, and, formerly, as a diuretic.
  • 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 spanish trail — an overland route from Santa Fe, N. Mex., to Los Angeles, Calif., first marked out in 1776 by Spanish explorers and missionaries.
  • omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
  • on speaking terms — the act, utterance, or discourse of a person who speaks.
  • 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".
  • 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 3 — (networking)   (OC-3) A SONET rate of 3 * 51.84 = 155.52 megabits per second, which matches STS-3.
  • optical carrier n — (networking)   (OC-n) A SONET rate of n times 51.84 megabits per second.
  • optical isomerism — stereoisomerism in which the isomers are identical in molecular weight and most chemical and physical properties but differ in their effect on the rotation of polarized light.
  • 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 psychosis — a severe mental illness produced by damage to the brain, as a result of poisoning, alcoholism, disease, etc
  • origin of species — (On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life) a treatise (1859) by Charles Darwin setting forth his theory of evolution.
  • ortho-nitrophenol — any compound derived from phenol by the replacement of one or more of its ring hydrogen atoms by the nitro group.
  • out of proportion — exaggerated, excessive
  • 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.
  • pacific northwest — the region of North America lying north of the Columbia River and west of the Rockies
  • pacific tree frog — a common terrestrial frog, Hyla regilla, of western North America, having a dark stripe along each side of the head.
  • pair annihilation — Physics. annihilation (def 3a).
  • pair of compasses — compass (def 7)
  • palace revolution — a challenge to or overthrow of a sovereign or other leader by members of the ruling family or group.
  • paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
  • paleobiogeography — the study of the distribution of ancient plants and animals and their relation to ancient geographic features.
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