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20-letter words that end in ion

  • property speculation — the buying or selling of property in the hope of deriving capital gains
  • radial triangulation — triangulation based upon lines radiating from the center of each of two overlapping photographs to certain objects appearing on each photograph.
  • recursive definition — a definition consisting of a set of rules such that by repeated application of the rules the meaning of the definiendum is uniquely determined in terms of ideas that are already familiar.
  • relative conjunction — a conjunction that introduces a relative clause
  • relative deprivation — the perception of an unfair disparity between one's situation and that of others.
  • ring wall foundation — A ring wall foundation is a base made of concrete, used to put large tanks on.
  • rise to the occasion — to have the courage, wit, etc, to meet the special demands of a situation
  • royal british legion — an organization founded in 1921 to provide services and assistance for former members of the armed forces
  • santa cruz operation — (SCO) A supplier of Unix systems for Intel microprocessors. They supply Xenix and Open Desktop. Founded in 1979, SCO became a public company in May, 1993 and trades on the Nasdaq National Market System under the symbol SCOC. SCO maintains its world headquarters in Santa Cruz, California, USA; a European headquarters in Watford, England; a Government Systems Group in Reston, Virginia; and offices in Asia, Australia, Canada, Latin America, and throughout Europe and the United States. In February 1993, SCO acquired IXI Limited of Cambridge, England, the leading supplier of Unix System windowing software.
  • satellite navigation — navigation using data received from satellites
  • satellite television — television transmitted from an artificial satellite at a power suitable for direct reception in the home
  • schrodinger equation — the wave equation of nonrelativistic quantum mechanics. Also called Schrödinger wave equation. Compare wave equation (def 2).
  • second law of motion — any of three laws of classical mechanics, either the law that a body remains at rest or in motion with a constant velocity unless an external force acts on the body (first law of motion) the law that the sum of the forces acting on a body is equal to the product of the mass of the body and the acceleration produced by the forces, with motion in the direction of the resultant of the forces (second law of motion) or the law that for every force acting on a body, the body exerts a force having equal magnitude and the opposite direction along the same line of action as the original force (third law of motion or law of action and reaction)
  • secure accommodation — an institution where young offenders are kept in custody
  • security association — (networking)   The relationship between two or more entities (typically, a computer, but could be a user on a computer, or software component) which describes how the entities will use security services, such as encryption, to communicate. See RFC 1825.
  • sex change operation — a surgical operation designed to change a person's physical sexual characteristics to those of the opposite sex
  • shear transformation — a map of a coordinate space in which one coordinate is held fixed and the other coordinate or coordinates are shifted.
  • 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
  • size-weight illusion — a standard sense illusion that a small object is heavier than a large object of the same weight
  • slow-scan television — a technique or system in which an image is scanned electronically more slowly than is normally done in order to produce images, especially of still pictures, that can be transmitted economically, as over a telephone line, and displayed on a television screen.
  • 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
  • southern oscillation — a low-latitude fluctuation of atmospheric pressure closely linked with El Niño events, specifically the periods of El Niño warming and La Niña cooling.
  • span of apprehension — the maximum number of objects that can be correctly assessed after a brief presentation
  • spherical aberration — variation in focal length of a lens or mirror from center to edge, due to its spherical shape.
  • spontaneous abortion — miscarriage (def 1).
  • spontaneous-abortion — Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
  • square cross-section — If a kelly has a square cross-section, it has a surface area with four equal sides, when looked at as if has been sliced through.
  • square of opposition — a diagrammatic representation of the opposition of categorical propositions.
  • stress concentration — A stress concentration in a solid is a place where there is a lot of stress, either because a force is applied in a particular area or there is a change in the cross-sectional area.
  • subjective intension — the associations that an expression has for an individual; the intension he believes it to have
  • subscription edition — an edition of one or more volumes for which a number of prospective purchasers place orders, usually in advance of publication.
  • sufficient condition — a statement whose truth is sufficient to guarantee the truth of a given statement
  • summary jurisdiction — the right a court has to adjudicate immediately upon some matter arising during its proceedings
  • superior conjunction — the alignment of an inferior planet and the sun in which the planet is at the far side of the sun from the earth.
  • synchronous rotation — rotation of a satellite in which the period of rotation is equal to the period of orbit around its primary, leaving the same face always pointing toward the primary: The moon is in synchronous rotation about the earth.
  • systemic circulation — the circulatory system in general.
  • take up a collection — to get into one's hold or possession by voluntary action: to take a cigarette out of a box; to take a pen and begin to write.
  • tchebycheff equation — a differential equation of the form (1 − x 2) d 2 y/dx 2 − x dy/dx + n 2 y = 0, where n is any nonnegative integer.
  • teletype corporation — (company)   The company which made Teletype teletypewriters. Address: Skokie, Illinois, USA.
  • tenants' association — an organization of tenants, usually with a written constitution and charitable status, whose aim is to improve the housing conditions, amenities, community life, and contractual positions of its members
  • the legal profession — the profession of law
  • therapeutic abortion — abortion performed when a woman's pregnancy endangers her health.
  • too much information — I don't want to hear any more
  • trimetric projection — a three-dimensional projection with three different linear scales at arbitrary angles.
  • twenty-twenty vision — vision that is of normal acuity
  • under the impression — If you are under the impression that something is the case, you believe that it is the case, usually when it is not actually the case.
  • university education — a course of study undertaken and completed at a university
  • university extension — a system by which an institution provides educational programs, as evening classes, for students otherwise unable to attend.
  • vertical combination — the integration within one company of individual businesses working separately in related phases of the production and sale of a product.
  • vertical integration — the joining together of all companies or firms involved in manufacturing a product into one company or firm
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