21-letter words containing s, p, u, y
- abyssinian guinea pig — a breed of short-haired guinea pig with rosettes all over its body
- acceptable use policy — (networking) (AUP) Rules applied by many transit networks which restrict the use to which the network may be put. A well known example is NSFNet which does not allow commercial use. Enforcement of AUPs varies with the network.
- alpha centauri system — a star system comprising the binary star Alpha Centauri A and B and Proxima Centauri (also called Alpha Centauri C), which is 0.1 light years closer to the sun. Visual magnitude: 0.01 (A), 1.33 (B); spectral type: G2V (A); distance from earth: 4.3 light years
- antimony pentasulfide — a deep-yellow, water-insoluble powder, Sb 2 S 5 , used chiefly as a pigment in oil and water colors.
- butterfly common lisp — A parallel version of Common LISP for the BBN Butterfly computer.
- confidence and supply — denoting an arrangement in a hung parliament in which an opposition party agrees not to vote against a minority government in votes of confidence or budgetary matters but reserves the right to oppose other legislation
- countably compact set — a set for which every cover consisting of a countable number of sets has a subcover consisting of a finite number of sets.
- disruptive technology — A disruptive technology is a new technology, such as computers and the Internet, which has a rapid and major effect on technologies that existed before.
- distributive property — Mathematics. the property that terms in an expression may be expanded in a particular way to form an equivalent expression.
- dusky seaside sparrow — a species of sparrow, Ammospiza maritima, existing in two subspecies, one (Cape Sable seaside sparrow) having dark olive-drab plumage with a lighter breast and underbelly, and the other (dusky seaside sparrow) having bold black and white markings on the breast and underbelly: the dusky seaside sparrow is almost extinct.
- epidermolysis bullosa — type of genetic skin disorder
- european space agency — an organization dedicated to space exploration with 18 European countries as members
- humanistic psychology — an approach to psychology that emphasizes emotions and the better understanding of the self in terms of observation of oneself and one's relations with others
- ieee computer society — (body) The society of the IEEE which publishes the journal "Computer".
- induction loop system — a system enabling partially deaf people to hear dialogue and sound in theatres, cinemas, etc, consisting of a loop of wire placed round the perimeter of a designated area. This emits an electromagnetic signal which is picked up by a hearing aid
- industrial psychology — the application of psychological principles and techniques to business and industrial problems, as in the selection of personnel or development of training programs.
- input-output analysis — an analysis of production relationships between the industries of an economy involving a study of each industry's inputs and outputs, esp as used in social accounting
- insulin shock therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
- irish republican army — an underground Irish nationalist organization founded to work for Irish independence from Great Britain: declared illegal by the Irish government in 1936, but continues activity aimed at the unification of the Republic of Ireland and Northern Ireland. Abbreviation: IRA, I.R.A.
- junior varsity sports — sports played at the second highest rank for university sports, ranking first after varsity
- linguistic philosophy — an approach to philosophical problems used especially by certain British and American philosophers, inspired by G. E. Moore, and marked by the elucidation of difficult and controversial concepts by resolving them into their elements.
- mucopolysaccharidoses — Plural form of mucopolysaccharidosis.
- mucopolysaccharidosis — Any of a group of metabolic disorders caused by the absence or malfunction of lysosomal enzymes needed to break down glycosaminoglycans.
- payload assist module — a U.S. solid-propellant rocket used to boost a medium-weight spacecraft from a circular low-earth orbit to an elliptical transfer orbit for later insertion into a geosynchronous orbit. Abbreviation: PAM.
- pdp assembly language — (language) (PAL) The assembly language for the PDP-8 and PDP-11.
- peroxydisulfuric acid — persulfuric acid (def 2).
- picture quality scale — (graphics) (PQS) A system for rating image quality based upon features of images that affect their perception by the human eye, rather than the traditional signal-to-noise ratio which examines differences for every single pixel.
- play russian roulette — take a foolish risk
- potassium thiocyanate — a colorless, crystalline, hygroscopic, water-soluble solid, KSCN, used chiefly in the manufacture of chemicals, dyes, and drugs.
- premenstrual syndrome — a complex of physical and emotional changes, including depression, irritability, appetite changes, bloating and water retention, breast soreness, and changes in muscular coordination, one or more of which may be experienced in the several days before the onset of menstrual flow. Abbreviation: PMS.
- psychoneuroimmunology — the study of the effects of psychological factors on the immune system
- public address system — loudspeaker
- public-address system — a combination of electronic devices that makes sound audible via loudspeakers to many people, as in an auditorium or out of doors.
- pulse height analyser — a multichannel analyser that sorts pulses into selected amplitude ranges
- pulse height analyzer — an instrument that records or counts an electrical pulse if its amplitude falls within specified limits: used in nuclear physics research for the determination of energy spectra of nuclear radiations
- put in the hard yards — to make a great effort to achieve an end
- residual unemployment — the unemployment that remains in periods of full employment, as a result of those mentally, physically, or emotionally unfit to work
- social inquiry report — (in Britain) a report on a person and his or her circumstances, which may be required by a court before sentencing and is made by a probation officer or a social worker from a local authority social services department
- sport utility vehicle — a rugged vehicle with a trucklike chassis and four-wheel drive, designed for occasional off-road use. Abbreviation: SUV.
- sport-utility vehicle — a rugged vehicle with a trucklike chassis and four-wheel drive, designed for occasional off-road use. Abbreviation: SUV.
- statutory corporation — a company or other body set up by statute
- structural psychology — psychology centering on the analysis of the structure or content of conscious mental states by introspective methods.
- supplementary benefit — (formerly) an extra amount of money that is paid to someone by the government, in addition to their normal income. Replaced by income support in 1988
- supply-side economics — a school of economic thought that emphasizes the importance to a strong economy of policies that remove impediments to supply
- symphonie fantastique — a programmatic symphony (1830–31) in five movements by Hector Berlioz.
- third-party insurance — insurance that compensates for a loss to a party other than the insured for which the insured is liable.
- to mix your metaphors — If you mix your metaphors, you use two conflicting metaphors. People do this accidentally, or sometimes deliberately as a joke.
- to pull your socks up — If you tell someone to pull their socks up, you mean that they should start working or studying harder, because they have been lazy or careless.
- trustee in bankruptcy — a person appointed by a court to administer the property of a bankrupt.
- ulster unionist party — a Northern Irish political party advocating the maintenance of union with the UK
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