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20-letter words containing r, u, s, i, a, n

  • rotations per minute — revolutions per minute
  • rough-winged swallow — either of two New World swallows of the genus Stelgidopteryx, having outer primary feathers with small barblike hooks on the margins.
  • 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.
  • scatter site housing — public housing, especially for low-income families, built throughout an urban area rather than being concentrated in a single neighborhood.
  • schrodinger equation — the wave equation of nonrelativistic quantum mechanics. Also called Schrödinger wave equation. Compare wave equation (def 2).
  • 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.
  • serra da mantiqueira — a mountain range in SE Brazil, running parallel to the coast. Highest point, 9140 feet (2785 meters).
  • shoulder-length hair — hair that reaches a person's shoulders
  • sodium meta-arsenite — sodium arsenite.
  • south american plate — a major tectonic division of the earth's crust, comprising the continent of South America and several ocean basins and bounded on the north by the Caribbean Plate, on the east by the Mid-Atlantic Ridge, on the west by a submarine trench that borders the western coast of the continent, and on the south by the Antarctic Plate.
  • south orkney islands — an uninhabited group of islands in the S Atlantic, southeast of Cape Horn: formerly a dependency of the Falkland Islands; part of the British Antarctic Territory since 1962 (claims are suspended under the Antarctic Treaty). Area: 621 sq km (240 sq miles)
  • 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.
  • 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.
  • squatter sovereignty — (used contemptuously by its opponents) popular sovereignty (def 2).
  • subscription library — a commercial lending library
  • suitland-silver hill — a city in central Maryland, near Washington, D.C.
  • summary jurisdiction — the right a court has to adjudicate immediately upon some matter arising during its proceedings
  • supersonic transport — a commercial jet airplane that can fly faster than the speed of sound. Abbreviation: SST.
  • surface-active agent — any substance that when dissolved in water or an aqueous solution reduces its surface tension or the interfacial tension between it and another liquid.
  • surveillance society — a society where surveillance technology is widely used to monitor people's everyday activities
  • 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.
  • terrestrial guidance — a method of missile or rocket guidance in which the flight path is controlled by reference to the strength and direction of the earth's gravitational or magnetic field
  • the founding fathers — any of the men who were members of the U.S. Constituional Convention of 1787
  • the garment industry — the manufacturing of items of clothing
  • to burst into flames — If something bursts into flames or bursts into flame, it suddenly starts burning strongly.
  • to get your bearings — to find out where one is or to find out what one should do next
  • to spread your wings — If you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience.
  • troilus and cressida — a satiric comedy (1598–1602?) by Shakespeare.
  • tropical disturbance — a very weak, or incipient, tropical cyclone.
  • trustee savings bank — a British financial institution which offered savings facilities for small investors and was managed by unpaid trustees. Depositors had no voting rights and no say in financial or managerial matters. The bank is now a public limited company with the same rights and services as other banks and only retains the title in the abbreviated form TSB.
  • tubing head pressure — The tubing head pressure is the pressure on the tubing, which is measured at the wellhead.
  • twelve-string guitar — an acoustic guitar having twelve strings instead of six, with each pair tuned an octave apart, and more difficult to play than the standard guitar.
  • uncertificated share — a share of a mutual fund credited to the account of a shareholder without the physical issuance of a certificate evidencing ownership.
  • uncharacteristically — Also, characteristical. pertaining to, constituting, or indicating the character or peculiar quality of a person or thing; typical; distinctive: Red and gold are the characteristic colors of autumn.
  • unified screw thread — a screw thread system introduced for defence equipment (1939–44), in which the thread form and pitch were a compromise between British Standard Whitworth and American Standard Sellers: adopted by the International Standards Organization
  • united arab emirates — group of Arabian states
  • universal quantifier — a quantifier indicating that the sentential function within its scope is true for all values of any variable included in the quantifier.
  • universal serial bus — (hardware, standard)   (USB) An external peripheral interface standard for communication between a computer and external peripherals over an inexpensive cable using biserial transmission. USB is intended to replace existing serial ports, parallel ports, keyboard, and monitor connectors and be used with keyboards, mice, monitors, printers, and possibly some low-speed scanners and removable hard drives. For faster devices existing IDE, SCSI, or emerging FC-AL or FireWire interfaces can be used. USB works at 12 Mbps with specific consideration for low cost peripherals. It supports up to 127 devices and both isochronous and asynchronous data transfers. Cables can be up to five metres long and it includes built-in power distribution for low power devices. It supports daisy chaining through a tiered star multidrop topology. A USB cable has a rectangular "Type A" plug at the computer end and a square "Type B" plug at the peripheral end. Before March 1996 Intel started to integrate the necessary logic into PC chip sets and encourage other manufacturers to do likewise. It was widely available by 1997. Later versions of Windows 95 included support for it. It was standard on Macintosh computers in 1999. The USB 2.0 specification was released in 2000 to allow USB to compete with Firewire etc. USB 2.0 is backward compatible with USB 1.1 but works at 480 Mbps.
  • university education — a course of study undertaken and completed at a university
  • university of durham — (body, education)   A busy research and teaching community in the historic cathedral city of Durham, UK (population 61000). Its work covers key branches of science and technology and traditional areas of scholarship. Durham graduates are in great demand among employers and the University helps to attract investment into the region. It provides training, short courses, and expertise for industry. Through its cultural events, conferences, tourist business and as a major employer, the University contributes in a wide social and economic sense to the community. Founded in 1832, the University developed in Durham and Newcastle until 1963 when the independent University of Newcastle upon Tyne came into being. Durham is a collegiate body, with 14 Colleges or Societies which are a social and domestic focus for students. In 1992, the Universities of Durham and Teesside launched University College, Stockton-on-Tees, which has 190 students in the first year.
  • university of hawaii — (body, education)   A University spread over 10 campuses on 4 islands throughout the state. See also Aloha, Aloha Net.
  • unsaddling enclosure — the area at a racecourse where horses are unsaddled after a race and often where awards are given to owners, trainers, and jockeys
  • visual merchandising — Visual merchandising is the use of attractive displays and floor plans to increase customer numbers and sales volumes.
  • vitoria de conquista — a city in Bahía state, E central Brazil.
  • voluntary euthanasia — the act of killing someone painlessly, esp to relieve suffering from an incurable illness, with their consent
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