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18-letter words containing o, p, s, n, i

  • composition rubber — manufactured rubber
  • composition series — a normal series of subgroups in which no additional subgroups can be inserted.
  • comprehensibleness — The quality of being comprehensible; comprehensibility.
  • compression stroke — The compression stroke is the stroke in an engine in which the air or air/fuel mixture is compressed before ignition.
  • compressor station — A compressor station is a facility with several compressors (= devices that increase the pressure of air or natural gas) and other equipment to pump natural gas under pressure over long distances.
  • computer scientist — a person with advanced knowledge of computers and how they work
  • concentration span — the length of time a person can concentrate on something
  • conceptual realism — the doctrine that universals have real and independent existence.
  • conceptualisations — Plural form of conceptualisation.
  • conceptualizations — Plural form of conceptualization.
  • condensation point — a point of which every neighborhood contains an uncountable number of points of a given set.
  • conservative party — The Conservative Party is the main right-of-centre party in Britain.
  • constituency party — a branch of a political party operating within a constituency
  • construction paper — Construction paper is a type of stiff, colored paper that children use for drawing and for making things.
  • constructive proof — (mathematics)   A proof that something exists that provides an example or a method for actually constructing it. For example, for any pair of finite real numbers n < 0 and p > 0, there exists a real number 0 < k < 1 such that f(k) = (1-k)*n + k*p = 0. A constructive proof would proceed by rearranging the above to derive an equation for k: k = 1/(1-n/p) From this and the constraints on n and p, we can show that 0 < k < 1. A few mathematicians actually reject *all* non-constructive arguments as invalid; this means, for instance, that the law of the excluded middle (either P or not-P must hold, whatever P is) has to go; this makes proof by contradiction invalid. See intuitionistic logic. Constructive proofs are popular in theoretical computer science, both because computer scientists are less given to abstraction than mathematicians and because intuitionistic logic turns out to be an appropriate theoretical treatment of the foundations of computer science.
  • continuous process — A continuous process is a process in which the product comes out without interruption and not in groups.
  • conversation piece — something, esp an unusual object, that provokes conversation
  • cornucopian thesis — the belief that, as long as science and technology continue to advance, growth can continue for ever because these new advances create new resources
  • corps of engineers — a branch of the U.S. Army responsible for military and many civil engineering projects.
  • counter-hypothesis — a proposition, or set of propositions, set forth as an explanation for the occurrence of some specified group of phenomena, either asserted merely as a provisional conjecture to guide investigation (working hypothesis) or accepted as highly probable in the light of established facts.
  • counterproposition — a proposition made in place of or in opposition to a preceding one.
  • cranial osteopathy — osteopathy that focuses on the cranium and the spine
  • creatine phosphate — phosphocreatine.
  • cross-disciplinary — linking two or more fields of study
  • crystal microphone — a microphone that uses a piezoelectric crystal to convert sound energy into electrical energy
  • cursor dipped in x — (jargon)   The metaphorical source of the electronic equivalent of a poisoned-pen letter. Derived from English metaphors of the form "pen dipped in X" (where X = e.g. "acid", "bile", "vitriol"). These map over neatly to this hackish usage (the cursor being what moves, leaving letters behind, when one is composing on-line). "Talk about a nastygram! He must've had his cursor dipped in acid when he wrote that one!"
  • customs inspection — an inspection carried out by a customs department
  • deanthropomorphism — the ridding of philosophy or religion of anthropomorphic beliefs and doctrines.
  • decision procedure — a procedure, as an algorithm, for determining in a finite number of steps the validity of any of a certain class of propositions.
  • deep-discount bond — a fixed-interest security that pays little or no interest but is issued at a substantial discount to its redemption value, thus largely substituting capital gain for income
  • desalination plant — a factory where salt is removed from salt water in order to make the water suitable for drinking and irrigation
  • desktop publishing — Desktop publishing is the production of printed materials such as newspapers and magazines using a desktop computer and a laser printer, rather than using conventional printing methods. The abbreviation DTP is also used.
  • didaskaleinophobia — The fear of going to school.
  • didot point system — a Continental system of measurement for type, based on a unit of 0.0148 inches (0.3759 mm).
  • disability pension — a pension paid to people who are unable to continue to work because of a disability
  • dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
  • disproportionality — not in proportion; disproportionate.
  • disproportionately — not proportionate; out of proportion, as in size or number.
  • disproportionation — the simultaneous oxidation and reduction of a substance reacting with itself, thereby forming two dissimilar molecules, as 2C 2 H 4 →C 2 H 6 +C 2 H 2 .
  • dissenting opinion — (in appellate courts) an opinion filed by a judge who disagrees with the majority decision of a case.
  • divine inspiration — insight provided by higher power
  • domestic appliance — a machine used for household tasks, for example, a washing machine, refrigerator, etc.
  • drainpipe trousers — trousers with very narrow legs
  • duty-free shopping — the making of duty-free purchases
  • dynamic psychology — any system of psychology that emphasizes the interaction between different motives, emotions, and drives
  • dynamically scoped — dynamic scope
  • east india company — the company chartered by the English government in 1600 to carry on trade in the East Indies: dissolved in 1874.
  • eggshell porcelain — a type of very thin translucent porcelain originally made in China
  • eigendecomposition — (linear algebra) The factorization of a matrix into a canonical form, whereby the matrix is represented in terms of its eigenvalues and eigenvectors.
  • employment service — (in the United States) a government department established to collect and supply to the unemployed information about job vacancies and to employers information about availability of prospective workers
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