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15-letter words containing s, e, y, o, u

  • nyquist theorem — (communications)   A theorem stating that when an analogue waveform is digitised, only the frequencies in the waveform below half the sampling frequency will be recorded. In order to reconstruct (interpolate) a signal from a sequence of samples, sufficient samples must be recorded to capture the peaks and troughs of the original waveform. If a waveform is sampled at less than twice its frequency the reconstructed waveform will effectively contribute only noise. This phenomenon is called "aliasing" (the high frequencies are "under an alias"). This is why the best digital audio is sampled at 44,000 Hz - twice the average upper limit of human hearing. The Nyquist Theorem is not specific to digitised signals (represented by discrete amplitude levels) but applies to any sampled signal (represented by discrete time values), not just sound.
  • open university — higher education by correspondence
  • ordnance survey — mapmaking agency
  • oyster mushroom — oyster cap.
  • pay as you earn — a method of paying tax in which the tax is taken off your wages before they are paid to you
  • peroxysulphuric — as in peroxysulphuric acid
  • personal injury — injury to an individual
  • petty bourgeois — petit bourgeois
  • play favourites — to display favouritism
  • please yourself — You say 'please yourself' to indicate in a rather rude way that you do not mind or care whether the person you are talking to does a particular thing or not.
  • plunket society — the Royal New Zealand Society for the Health of Women and Children
  • policy issuance — Policy issuance is the process of creating an insurance policy and providing it to the policyholder.
  • polyisobutylene — a polymer of isobutylene, used chiefly in the manufacture of synthetic rubber.
  • polyphemus moth — a large, yellowish-brown American silkworm moth, Antheraea polyphemus, having a prominent eyespot on each hind wing and feeding on cherry, apple, and other trees.
  • polyunsaturated — of or noting a class of animal or vegetable fats, especially plant oils, whose molecules consist of carbon chains with many double bonds unsaturated by hydrogen atoms and that are associated with a low cholesterol content of the blood.
  • pseudo-military — of, for, or pertaining to the army or armed forces, often as distinguished from the navy: from civilian to military life.
  • pseudomutuality — a relationship between two persons in which conflict of views or opinions is solved by simply ignoring it
  • pseudoparalysis — the inability to move a part of the body owing to factors, as pain, other than those causing actual paralysis.
  • pseudopregnancy — Pathology, Veterinary Pathology. false pregnancy.
  • put years on sb — If you say that something such as an experience or a way of dressing has put years on someone, you mean that it has made them look or feel much older.
  • query expansion — (information science)   Adding search terms to a user's search. Query expansion is the process of a search engine adding search terms to a user's weighted search. The intent is to improve precision and/or recall. The additional terms may be taken from a thesaurus. For example a search for "car" may be expanded to: car cars auto autos automobile automobiles. The additional terms may also be taken from documents that the user has specified as being relevant; this is the basis for the "more like this" feature of some search engines. The extra terms can have positive or negative weights.
  • questionability — of doubtful propriety, honesty, morality, respectability, etc.: questionable activities; in questionable taste.
  • ray of sunshine — beam of sunlight
  • rayside-balfour — a town in S Ontario, in S Canada.
  • regulatory risk — a risk to which private companies are subject, arising from the possibility of legislation or regulations that will affect business being adopted by a government
  • resurrectionary — pertaining to or of the nature of resurrection.
  • reynolds number — a dimensionless number, vρl/η, where v is the fluid velocity, ρ the density, η the viscosity and l a dimension of the system. The value of the number indicates the type of fluid flow
  • rogues' gallery — a collection of portraits of criminals and suspects maintained by the police for purposes of identification.
  • royal enclosure — at the Royal Ascot horse-race meeting, an area of Ascot racecourse which is reserved for the Royal Family, members, and their guests
  • ruddy turnstone — a common shorebird, Arenaria interpres, of the New and Old World arctic, wintering south to southern South America and Australia and having striking reddish-brown, black, and white plumage.
  • sarcenchymatous — relating to the connective tissue of some sponges
  • secondary cause — a cause which is not the primary or ultimate cause
  • secondary group — a group of people with whom one's contacts are detached and impersonal.
  • security forces — police or soldiers responsible for maintaining security
  • security police — a police force responsible for maintaining order at a specific locale or under specific circumstances, as at an airport or factory.
  • self-regulatory — Self-regulatory systems, organizations, or activities are controlled by the people involved in them, rather than by outside organizations or rules.
  • semidocumentary — a film or television programme that is fictional but includes many factual events or details
  • serendipitously — come upon or found by accident; fortuitous: serendipitous scientific discoveries.
  • social security — (usually initial capital letters) a program of old-age, unemployment, health, disability, and survivors insurance maintained by the U.S. federal government through compulsory payments by specific employer and employee groups.
  • sodium ethylate — a white, hygroscopic powder, C 2 H 5 ONa, that is decomposed by water into sodium hydroxide and alcohol: used chiefly in organic synthesis.
  • soul-destroying — Activities or situations that are soul-destroying make you depressed, because they are boring or because there is no hope of improvement.
  • south yorkshire — a metropolitan county in N England. 603 sq. mi. (1561 sq. km).
  • southeastwardly — toward the southeast
  • southwestwardly — toward the southwest
  • spiny cocklebur — a cocklebur, Xanthium spinosum, introduced into North America from Europe.
  • squirrel monkey — either of two small, long-tailed monkeys, Saimiri oerstedii of Central America and S. sciureus of South America, having a small white face with black muzzle and gold, brown, or greenish fur: S. oerstedii is endangered.
  • stand-up comedy — telling jokes to an audience
  • statutory crime — a wrong punishable under a statute, rather than at common law.
  • statutory order — a statute that applies further legislation to an existing act
  • stay the course — to spend some time in a place, in a situation, with a person or group, etc.: He stayed in the army for ten years.
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