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20-letter words containing a, g, s, t

  • pythagoras's theorem — (mathematics)   The theorem of geometry, named after Pythagoras, of Samos, Ionia, stating that, for a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. I.e. if the longest side has length A and the other sides have lengths B and C (in any units), A^2 = B^2 + C^2 (2004-02-12)
  • quaker meeting house — a place where Quakers gather for worship
  • quantum bogodynamics — /kwon'tm boh"goh-di:-nam"iks/ A theory that characterises the universe in terms of bogon sources (such as politicians, used-car salesmen, TV evangelists, and suits in general), bogon sinks (such as taxpayers and computers), and bogosity potential fields. Bogon absorption causes human beings to behave mindlessly and machines to fail (and may also cause both to emit secondary bogons); however, the precise mechanics of bogon-computron interaction are not yet understood. Quantum bogodynamics is most often invoked to explain the sharp increase in hardware and software failures in the presence of suits; the latter emit bogons, which the former absorb.
  • raise one's glass to — to drink the health of; drink a toast to
  • real-estate register — (in the United States) an annual directory that lists available properties and provides contact details for real estate companies
  • real-time processing — data-processing by a computer which receives constantly changing data, such as information relating to air-traffic control, travel booking systems, etc, and processes it sufficiently rapidly to be able to control the source of the data
  • refracting telescope — an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end of a tube that slides into the first and through which the enlarged object is viewed directly; the other form (reflecting telescope) has a concave mirror that gathers light from the object and focuses it into an adjustable eyepiece or combination of lenses through which the reflection of the object is enlarged and viewed. Compare radio telescope.
  • registered dietitian — a person who has fulfilled all the educational and examination requirements of the American Dietetic Association for recognition as a qualified nutrition specialist.
  • registered trademark — brand name
  • reminder advertising — a type of advertising designed to remind customers that an existing or well-known product is still available and for sale
  • repurchase agreement — a contract between a dealer, as a bank, and an investor, whereby the investor purchases securities with the promise that they will be bought back by the dealer on a designated date, for which the investor receives a fixed return.
  • reservations manager — A reservations manager at a hotel is responsible for the reservations at the hotel.
  • restriction fragment — a length of DNA cut from the strand by a restriction enzyme.
  • retinitis pigmentosa — degeneration of the retina manifested by night blindness and gradual loss of peripheral vision, eventually resulting in tunnel vision or total blindness.
  • ring-necked pheasant — a gallinaceous Asian bird, Phasianus colchicus, having a white band around its neck, introduced into Great Britain, North America, and the Hawaiian Islands.
  • royal british legion — an organization founded in 1921 to provide services and assistance for former members of the armed forces
  • royal leamington spa — a city in Warwickshire, central England: health resort.
  • saint george's cross — the Greek cross as used in the flag of Great Britain.
  • saint mary magdalene — a woman of Magdala (ˈmæɡdələ ) in Galilee whom Jesus cured of evil spirits (Luke 8:2) and who is often identified with the sinful woman of Luke 7:36–50. In Christian tradition she is usually taken to have been a prostitute. Feast day: July 22
  • sanitary engineering — a branch of civil engineering dealing with matters affecting public health, as water supply or sewage disposal.
  • sarcastic fringehead — any fish of the genus Neoclinus, characterized by a row of fleshy processes on the head, as N. blanchardi (sarcastic fringehead) of California coastal waters.
  • satellite navigation — navigation using data received from satellites
  • satellite photograph — a photograph taken by an artificial satellite from space
  • scatter site housing — public housing, especially for low-income families, built throughout an urban area rather than being concentrated in a single neighborhood.
  • scavenger's daughter — an instrument of torture that doubled over and squeezed the body so strongly and violently that blood was brought forth from the ears and nose: invented in 16th-century England.
  • schrodinger equation — the wave equation of nonrelativistic quantum mechanics. Also called Schrödinger wave equation. Compare wave equation (def 2).
  • seating arrangements — the seating plan for a formal occasion
  • see the light of day — come into being
  • self-belaying system — (in climbing) equipment used to pay out rope as required and thus enable a climber to self-belay
  • self-differentiating — to form or mark differently from other such things; distinguish.
  • semiautobiographical — pertaining to or being a fictionalized account of an author's own life.
  • sensitivity training — a form of group therapy designed to develop understanding of oneself and others through free, unstructured discussion.
  • sergeant first class — a noncommissioned officer ranking next above a staff sergeant and below a first or master sergeant.
  • serve a person right — to pay a person back, esp for wrongful or foolish treatment or behaviour
  • set the ball rolling — to open or initiate (an action, discussion, movement, etc)
  • seven against thebes — (used with a plural verb) Classical Mythology. seven heroes, Amphiaraus, Capaneus, Eteoclus, Hippomedon, Parthenopaeus, Polynices, and Tydeus, who led an expedition against Thebes to depose Eteocles in favor of his brother Polynices: the expedition failed, but the Epigoni, the sons of the Seven against Thebes, conquered the city ten years later.
  • sex change operation — a surgical operation designed to change a person's physical sexual characteristics to those of the opposite sex
  • shank of the evening — the latter part of the afternoon
  • shifting cultivation — a land-use system, esp in tropical Africa, in which a tract of land is cultivated until its fertility diminishes, when it is abandoned until this is restored naturally
  • short message system — A short message system is a way of sending short written messages from one mobile phone to another. The abbreviation SMS is also used.
  • shoulder-length hair — hair that reaches a person's shoulders
  • skating championship — a competition for ice-skating
  • snowflake generation — the generation of people who became adults in the 2010s, viewed as being less resilient and more prone to taking offence than previous generations
  • soft gelatin capsule — A soft gelatin capsule is a type of capsule that is usually used to contain medicine in the form of liquid or powder, and which dissolves more quickly than a hard gelatin capsule.
  • software engineering — the process of writing computer programs
  • software methodology — (programming)   The study of how to navigate through each phase of the software process model (determining data, control, or uses hierarchies, partitioning functions, and allocating requirements) and how to represent phase products (structure charts, stimulus-response threads, and state transition diagrams).
  • sound-and-light show — a nighttime spectacle or performance, at which a building, historic site, etc., is illuminated and the historic significance is imparted to spectators by means of narration, sound effects, and music.
  • spatial technologies — (company)   Distributors of the ACIS solid modelling engine.
  • special patrol group — a former police unit tasked with counter terrorism in the Royal Ulster Constabulary
  • specialist registrar — a hospital doctor senior to a house officer but junior to a consultant, specializing in medicine (medical specialist registrar), surgery (surgical specialist registrar), or some subspeciality of either
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