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24-letter words containing s, e, p, a

  • pre-emptive multitasking — (operating system, parallel)   A type of multitasking where the scheduler can interrupt and suspend ("swap out") the currently running task in order to start or continue running ("swap in") another task. The tasks under pre-emptive multitasking can be written as though they were the only task and the scheduler decides when to swap them. The scheduler must ensure that when swapping tasks, sufficient state is saved and restored that tasks do not interfere. The length of time for which a process runs is known as its "time slice" and may depend on the task's priority or its use of resources such as memory and I/O. This contrasts with cooperative multitasking where each task must include calls to allow it to be descheduled periodically.
  • preparatory to doing sth — If one action is done preparatory to another, it is done before the other action, usually as preparation for it.
  • present company excepted — If you are making a general, unfavourable comment about a particular type of person, and you are with people of that type, you can say 'present company excepted' as a way of making your comment sound more polite.
  • pretty amazing new stuff — (humour, communications)   (PANS) What PSTN is evolving into.
  • private health insurance — insurance against the need for medical treatment as a private patient
  • professional association — a body of persons engaged in the same profession, formed usually to control entry into the profession, maintain standards, and represent the profession in discussions with other bodies
  • professional corporation — a corporation formed by one or more licensed practitioners, especially medical or legal, to operate their practices on a corporate plan. Abbreviation: PC, P.C.
  • professional programming — paranoid programming
  • progressive assimilation — assimilation in which a preceding sound has an effect on a following one, as in shortening captain to cap'm rather than cap'n.
  • progressive conservative — a member of the Progressive Conservative party of Canada.
  • psychopathic personality — an antisocial personality characterized by the failure to develop any sense of moral responsibility and the capability of performing violent or antisocial acts
  • public access television — television in which local producers or individuals can participate
  • public relations officer — a person who is responsible for communications with the public
  • public-access television — a noncommercial system of broadcasting on television channels made available to independent or community groups for programs of general interest to the community.
  • punch above one's weight — to do something that is considered to be beyond one's ability
  • put the show on the road — to set things in operation; start an activity, venture, etc.
  • put their heads together — to consult together
  • pyrotraumatic dermatitis — hot spot.
  • rain on someone's parade — to hinder someone's enjoyment; upset someone's plans
  • rapid eye movement sleep — REM sleep.
  • reciprocal translocation — an exchange of segments between two nonhomologous chromosomes.
  • 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.
  • repetitive strain injury — overuse strain injury
  • repondez s'il vous plait — Répondez s'il vous plait
  • 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
  • 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.
  • scalable vector graphics — (graphics, web)   A W3C standard for vector graphics, based on XML.
  • scholastic aptitude test — a standard assessment test for entry into college in the United States
  • sequentially compact set — a set in which every sequence has a subsequence that converges to a point of the set.
  • serial interface adaptor — (SIA) The Ethernet driver chip used on a Filtabyte Ethernet card.
  • shenandoah national park — a national park in N Virginia, including part of the Blue Ridge mountain range. 302 sq. mi. (782 sq. km).
  • short-horned grasshopper — locust (def 1).
  • 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
  • socialist workers' party — one of the biggest extreme left wing parties in Britain
  • sodium hexametaphosphate — See under Calgon.
  • special checking account — a checking account that requires no minimum balance but in which a small charge is made for each check issued or drawn and for monthly maintenance.
  • special development area — an area earmarked for special development by the government
  • split image range finder — a range finder in which opposing halves of a split field move relative to each other and coincide when the object centered in the field is in focus.
  • staggered pin grid array — (hardware)   (SPGA) A style of integrated circuit socket or pin-out with a staggered grid of pins around the edge of the socket, positioned as several squares, one inside the other. SPGA is commonly used on motherboards for processors, e.g. Socket 5, Socket 7 and Socket 8. See also PGA.
  • statistical independence — the condition or state of events or values of being statistically independent.
  • steak and kidney pudding — beefsteak and kidney in a suet pastry crust, steamed in a basin.
  • 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.
  • stratified random sample — a random sample of a population in which the population is first divided into distinct subpopulations, or strata, and random samples are then taken separately from each stratum.
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