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17-letter words containing a, c, r, o, s, m

  • omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
  • optical astronomy — the branch of observational astronomy using telescopes to observe or photograph celestial objects in visible light.
  • 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.
  • organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.
  • 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.
  • over-compensation — a pronounced striving to neutralize and conceal a strong but unacceptable character trait by substituting for it an opposite trait.
  • overhead camshaft — a camshaft in an automotive engine that is located in the cylinder head over the engine block rather than in the block. Abbreviation: OHC.
  • pair of compasses — compass (def 7)
  • paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
  • performance bonus — a monetary bonus paid to staff who have performed well in their job
  • performance drugs — the drugs that are taken illegally by athletes to enhance their sporting performance
  • pernicious anemia — Pernicious anemia is a very severe blood disease.
  • 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.
  • peterloo massacre — an incident at St Peter's Fields, Manchester, in 1819 in which a radical meeting was broken up by a cavalry charge, resulting in about 500 injuries and 11 deaths
  • poststructuralism — a variation of structuralism, often seen as a critique, emphasizing plurality of meaning and instability of concepts that structuralism uses to define society, language, etc.
  • pre-modifications — an act or instance of modifying.
  • primary processes — the generally unorganized mental activity characteristic of the unconscious and occurring in dreams, fantasies, and related processes.
  • prismatic compass — a hand compass equipped with sights and prisms to permit aiming the instrument at a point and at the same time reading the compass direction of the point.
  • pseudo-democratic — pertaining to or of the nature of democracy or a democracy.
  • pseudo-moralistic — a person who teaches or inculcates morality.
  • radioluminescence — luminescence induced by nuclear radiation.
  • recoil escapement — anchor escapement.
  • recursion formula — a formula for determining the next term of a sequence from one or more of the preceding terms.
  • recursive acronym — (convention)   A hackish (and especially MIT) tradition is to choose acronyms and abbreviations that refer humorously to themselves or to other acronyms or abbreviations. The classic examples were two MIT editors called EINE ("EINE Is Not Emacs") and ZWEI ("ZWEI Was EINE Initially"). More recently, there is a Scheme compiler called LIAR (Liar Imitates Apply Recursively), and GNU stands for "GNU's Not Unix!" - and a company with the name CYGNUS, which expands to "Cygnus, Your GNU Support". See also mung.
  • renaissance woman — a woman who has acquired profound knowledge or proficiency in more than one field.
  • roman catholicism — the faith, practice, and system of government of the Roman Catholic Church.
  • ross and cromarty — a historic county in NW Scotland.
  • sacra romana rota — the official name of the Rota.
  • sacred roman rota — rota1 (def 3).
  • sanctum sanctorum — the holy of holies of the Biblical tabernacle and the Temple in Jerusalem.
  • self-confirmation — the act of confirming.
  • semi-biographical — of or relating to a person's life: He's gathering biographical data for his book on Milton.
  • semimicroanalysis — any analytical method in which the weight of the sample is between 10 and 100 milligrams.
  • shorter catechism — one of the two catechisms established by the Westminster Assembly in 1647, used chiefly in Presbyterian churches.
  • shower attachment — a device fixed to taps to make a shower
  • smarandache logic — neutrosophic logic
  • social democratic — A social democratic party is a political party whose principles are based on social democracy.
  • socialist realism — a state-approved artistic or literary style in some socialist countries, as the U.S.S.R., that characteristically celebrates an idealized vision of the life and industriousness of the workers.
  • sodium bichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
  • sodium dichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
  • sound spectrogram — a graphic representation, produced by a sound spectrograph, of the frequency, intensity, duration, and variation with time of the resonance of a sound or series of sounds.
  • spectroradiometer — an instrument for determining the radiant-energy distribution in a spectrum, combining the functions of a spectroscope with those of a radiometer.
  • spongy parenchyma — the lower layer of the ground tissue of a leaf, characteristically containing irregularly shaped cells with relatively few chloroplasts and large intercellular spaces.
  • spring cankerworm — the striped, green caterpillar of any of several geometrid moths: a foliage pest of various fruit and shade trees, as Paleacrita vernata (spring cankerworm) and Alsophila pometaria (fall cankerworm)
  • stand on ceremony — to insist on or act with excessive formality
  • stochastic matrix — a square matrix with positive entries totaling 1 in each row.
  • storm in a teacup — a violent fuss or disturbance over a trivial matter
  • superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
  • supercolumniation — the placing of one order of columns above another.
  • support mechanism — any formal system or method of providing support or assistance
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