24-letter words containing c, r, s
- recharge one's batteries — If you recharge a battery, you put an electrical charge back into the battery by connecting it to a machine that draws power from another source of electricity.
- reciprocal translocation — an exchange of segments between two nonhomologous chromosomes.
- reconnaissance satellite — a military satellite designed to carry out photographic surveillance, gather electronic intelligence, detect nuclear explosions, or provide early warning of strategic-missile launchings.
- recursive descent parser — (grammar) A "top-down" parser built from a set of mutually-recursive procedures or a non-recursive equivalent where each such procedure usually implements one of the productions of the grammar. Thus the structure of the resulting program closely mirrors that of the grammar it recognises.
- referential transparency — (programming) An expression E is referentially transparent if any subexpression and its value (the result of evaluating it) can be interchanged without changing the value of E. This is not the case if the value of an expression depends on global state which can change value. The most common example of changing global state is assignment to a global variable. For example, if y is a global variable in: f(x) { return x+y; } g(z) { a = f(1); y = y + z; return a + f(1); } function g has the "side-effect" that it alters the value of y. Since f's result depends on y, the two calls to f(1) will return different results even though the argument is the same. Thus f is not referentially transparent. Changing the order of evaluation of the statements in g will change its result. We could make f above referentially transparent by passing in y as an argument: f(x, y) = x+y Similarly, g would need to take y as an argument and return its new value as part of the result: g(z, y) { a = f(1, y); y' = y+z; return (a + f(1, y'), y'); } Referentially transparent programs are more amenable to formal methods and easier to reason about because the meaning of an expression depends only on the meaning of its subexpressions and not on the order of evaluation or side-effects of other expressions. We can stretch the concept of referential transparency to include input and output if we consider the whole program to be a function from its input to its output. The program as a whole is referentially transparent because it will always produce the same output when given the same input. This is stretching the concept because the program's input may include what the user types, the content of certain files or even the time of day. If we do not consider global state like the contents of files as input, then writing to a file and reading what was written behaves just like assignment to a global variable. However, if we must consider the state of the universe as an input rather than global state then any deterministic system would be referentially transparent! See also extensional equality, observational equivalence.
- relative record data set — (database) (RRDS) One of the access methods used by IBM's VSAM.
- renewable term insurance — Renewable term insurance is term life insurance that may be renewed for another period without the policyholder needing to provide further evidence of their insurability.
- representative democracy — a person or thing that represents another or others.
- republic of south africa — Republic of, a country in S Africa; member of the Commonwealth of Nations until 1961. 472,000 sq. mi. (1,222,480 sq. km). Capitals: Pretoria and Cape Town.
- resale price maintenance — the practice by which a manufacturer establishes a fixed or minimum price for the resale of a brand product by retailers or other distributors
- research and development — the part of a commercial company's activity concerned with applying the results of scientific research to develop new products and improve existing ones
- responsibility allowance — payment made to somebody who has special responsibilities
- robot exclusion standard — standard for robot exclusion
- rock back on one's heels — to astonish or be astonished
- rocky mountain whitefish — mountain whitefish.
- rose-coloured spectacles — If you look at a person or situation through rose-coloured glasses or rose-tinted glasses, you see only their good points and therefore your view of them is unrealistic. In British English, you can also say that someone is looking through rose-coloured spectacles.
- san francisco de macoris — a city in the N Dominican Republic.
- santa coloma de gramanet — a city in NE Spain.
- scalable vector graphics — (graphics, web) A W3C standard for vector graphics, based on XML.
- schizoaffective disorder — a psychotic disorder in which symptoms of schizophrenia and affective disorder occur simultaneously.
- scottish country dancing — a type of Scottish folk dancing, including reels, jigs, and strathspeys, in which couples are arranged in sets and perform a series of movements, esp facing one another in a line
- second earl of shelburne — William Petty Fitzmaurice, 2nd Earl of, 1st Marquess of Lansdowne, William Petty Fizmaurice Lansdowne.
- secondary school teacher — a person who teaches at a secondary school
- selective service system — the U.S. federal agency that facilitates the mobilization of military forces by requiring the registration of males between the ages of 18 and 26 years. Abbreviation: SSS.
- self-fulfilling prophecy — a prophecy that comes true because of the expectation that it will
- senegambia confederation — an economic and political union (1982–89) between Senegal and The Gambia
- serial interface adaptor — (SIA) The Ethernet driver chip used on a Filtabyte Ethernet card.
- shadow foreign secretary — the member of the main opposition party in Parliament who would hold the office of Foreign Secretary if their party were in power
- she is no spring chicken — she is no longer young
- show one's (true) colors — to reveal one's true self
- sic transit gloria mundi — thus passes the glory of the world
- single european currency — the official currency, also known as the Euro, of some of the members of the European Union
- single premium insurance — Single premium insurance is insurance where all the premium is paid at once, in one payment.
- skeleton in the cupboard — a scandalous fact or event in the past that is kept secret
- slop oil recovery system — A slop oil recovery system is a method and the equipment used for cleaning and disposing of mixtures of oil, chemicals, and water from various sources in a refinery or oilfield.
- socialist workers' party — one of the biggest extreme left wing parties in Britain
- south equatorial current — an ocean current, flowing westward, found near the equator in the Atlantic, Pacific, and Indian oceans.
- southern cornstalk borer — the larva of a grass moth, Diatraea crambidoides, occurring in the southeastern U.S. from Maryland to Georgia, that is sometimes a serious pest, especially of corn.
- special development area — an area earmarked for special development by the government
- stereographic projection — a one-to-one correspondence between the points on a sphere and the extended complex plane where the north pole on the sphere corresponds to the point at infinity of the plane.
- stratificational grammar — a grammar based upon the theory that language is made up of successive strata that are interconnected by established rules.
- stratified charge engine — an internal-combustion engine in which a small charge of a rich fuel mixture is ignited first and used to improve combustion of a larger charge of a lean fuel mixture.
- structural functionalism — functionalism (def 3).
- subordinate con-junction — a conjunction introducing a subordinate clause, as when in They were glad when I finished.
- succinylcholine chloride — a crystalline compound, C 1 4 H 3 0 Cl 2 N 2 O 4 , used as a skeletal muscle relaxant in surgical procedures.
- sulphur-crested cockatoo — a large Australian white parrot, Kakatoe galerita, with a yellow erectile crest
- superheterodyne receiver — a radio receiver that combines two radio-frequency signals by heterodyne action, to produce a signal above the audible frequency limit. This signal is amplified and demodulated to give the desired audio-frequency signal
- supportive psychotherapy — a type of psychotherapy that seeks to reduce psychological conflict and strengthen a patient's defenses through the use of various techniques, as reassurance, suggestion, counseling, and reeducation.
- synchronous graphics ram — Synchronous Graphics Random Access Memory
- telephony user interface — (communications) (TUI) Either a software interface to telephony (e.g. a phone-capable PC) or a DTMF-based interface to software (e.g. voicemail).