20-letter words containing a, c, o, u, s
- secure accommodation — an institution where young offenders are kept in custody
- secure sockets layer — (networking, security) (SSL) A protocol designed by Netscape Communications Corporation to provide secure communications over the Internet using asymmetric key encryption. SSL is layered beneath application protocols such as HTTP, SMTP, Telnet, FTP, Gopher and NNTP and is layered above the connection protocol TCP/IP. It is used by the HTTPS access method.
- 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.
- semiautobiographical — pertaining to or being a fictionalized account of an author's own life.
- serious fraud office — a UK government office responsible for investigating and prosecuting serious fraud cases
- settle accounts with — to pay or receive a balance due
- 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
- skull and crossbones — a representation of a front view of a human skull above two crossed bones, originally used on pirates' flags and now used as a warning sign, as in designating substances as poisons.
- social security card — a card that contains details of a person's social security number
- sodium fluoroacetate — a white, amorphous, water-soluble, poisonous powder, C 2 H 2 FO 2 Na, used as a rodenticide.
- 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.
- 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 atlantic ocean — the part of the Atlantic Ocean extending S from the Equator to the Antarctic continent.
- 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.
- space-time continuum — Also called space-time continuum. the four-dimensional continuum, having three spatial coordinates and one temporal coordinate, in which all physical quantities may be located.
- special patrol group — a former police unit tasked with counter terrorism in the Royal Ulster Constabulary
- specific conductance — conductivity (def 2).
- specific-conductance — conductivity (def 2).
- spontaneous recovery — the reappearance of a response after its extinction has been followed by a period of rest
- 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.
- staff of aesculapius — a representation of a forked staff with an entwining serpent, used as a symbol of the medical profession and as the insignia of the American Medical Association and other medical organizations. Compare caduceus (def 2).
- states of the church — Papal States
- straight-cut tobacco — tobacco that is cut in such a way that it will lie flat.
- strong nuclear force — an interaction between elementary particles responsible for the forces between nucleons in the nucleus. It operates at distances less than about 10–15 metres, and is about a hundred times more powerful than the electromagnetic interaction
- structural isomerism — Chemistry. the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism) as CH 3 OCH 3 and CH 3 CH 2 OH, or in the arrangement of their atoms in space and therefore in one or more properties. Compare optical isomerism, stereoisomerism.
- subpoena duces tecum — a writ directing a person to appear in court and to bring some document described in the writ.
- subscription library — a commercial lending library
- 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.
- 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.
- the course of nature — the ordinary course of events
- thioantimonious acid — any of a group of hypothetical acids, H3SbS3, HSbS2, and H4Sb2S5, known only in the forms of their salts in solution
- thomas of erceldoune — Thomas of, Thomas of Erceldoune.
- thought transference — transference of thought by extrasensory means from the mind of one individual to another; telepathy.
- to disturb the peace — If someone is accused of disturbing the peace, they are accused of behaving in a noisy and offensive way in public.
- to use shock tactics — to attempt to influence people by shocking them
- tobacco mosaic virus — a retrovirus causing mosaic disease in members of the nightshade family. Abbreviation: TMV.
- toothbrush moustache — a short narrow moustache, resembling the filaments of a toothbrush
- transposed conjugate — adjoint (def 2).
- troilus and cressida — a satiric comedy (1598–1602?) by Shakespeare.
- tropical disturbance — a very weak, or incipient, tropical cyclone.
- trumpet call for sth — a signal for something
- ultimate constituent — an element of a construction that cannot be further divided into grammatical constituents: the morphemes of an utterance are usually considered to be its ultimate constituents.
- university education — a course of study undertaken and completed at a university
- 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
- vesicular stomatitis — a disease of horses, swine, and cattle, similar in its symptoms to foot-and-mouth disease, and characterized by blisters on the lips, snout, and oral mucous membranes.
- vitoria de conquista — a city in Bahía state, E central Brazil.
- warehouse facilities — places for storing goods