21-letter words containing s, i, d, l, e, y
- active matrix display — (hardware) A type of liquid crystal display where each display element (each pixel) includes an active component such as a transistor to maintain its state between scans. Contrast passive matrix display.
- aerodynamic stability — Aerodynamic stability is the way that a moving vehicle reacts to changes in air caused by passing vehicles.
- aladdin systems, inc. — (company) The company that developed and distributes Stuffit and other utility software for the Macintosh, Microsoft Windows, and Palm handheld computers. Not to be confused with Aladdin Enterprises.
- antimony pentasulfide — a deep-yellow, water-insoluble powder, Sb 2 S 5 , used chiefly as a pigment in oil and water colors.
- beyond (all) question — beyond (any) dispute or doubt
- binding-time analysis — (compiler) An analysis to identify sub-expressions which can be evaluated at compile-time or where versions of a function can be generated and called which are specialised to certain values of one or more arguments. See partial evaluation.
- bulletin board system — (communications, application) (BBS, bboard /bee'bord/, message board, forum; plural: BBSes) A computer and associated software which typically provides an electronic message database where people can log in and leave messages. Messages are typically split into topic groups similar to the newsgroups on Usenet (which is like a distributed BBS). Any user may submit or read any message in these public areas. The term comes from physical pieces of board on which people can pin messages written on paper for general consumption - a "physical bulletin board". Ward Christensen, the programmer and operator of the first BBS (on-line 1978-02-16) called it a CBBS for "computer bulletin board system". Since the rise of the World-Wide Web, the term has become antiquated, though the concept is more popular than ever, with many websites featuring discussion areas where users can post messages for public consumption. Apart from public message areas, some BBSes provided archives of files, personal electronic mail and other services of interest to the system operator (sysop). Thousands of BBSes around the world were run from amateurs' homes on MS-DOS boxes with a single modem line each. Although BBSes were traditionally the domain of hobbyists, many connected directly to the Internet (accessed via telnet), others were operated by government, educational, and research institutions. Fans of Usenet or the big commercial time-sharing bboards such as CompuServe, CIX and GEnie tended to consider local BBSes the low-rent district of the hacker culture, but they helped connect hackers and users in the personal-micro and let them exchange code. Use of this term for a Usenet newsgroup generally marks one either as a newbie fresh in from the BBS world or as a real old-timer predating Usenet.
- businessman's holiday — busman's holiday.
- cascading style sheet — a file recording style details, such as fonts, colours, etc, that is read by browsers so that style is consistent over multiple web pages
- comfortably-furnished — containing comfortable furniture
- 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
- deep scattering layer — any of the stratified zones in the ocean which reflect sound during echo sounding, usually composed of marine organisms which migrate vertically from c. 250 to 800 m (c. 820 to 2,625 ft)
- deployment descriptor — (programming) (DD) A J2EE configuration file.
- designated employment — (in Britain) any of certain kinds of jobs reserved for handicapped workers under the Disabled Persons (Employment) Act 1944
- displacement activity — a behavior performed out of its usual context and apparently irrelevant to the prevailing situation, as eating when an unknown individual approaches, tending to occur when appropiate behaviors, as attacking or fleeing, are in conflict or obstructed.
- display advertisement — an advertisement designed to attract attention by using devices such as conspicuous or elegant typefaces, graphics, etc
- 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.
- distant early warning — a US radar detection system to warn of missile attack
- dumfries and galloway — a region in S Scotland. 2460 sq. mi. (6371 sq. km).
- eastern daylight time — a time zone applicable to many eastern areas of the United States during the summer months, being a daylight-saving variant of Eastern Standard Time
- educational sociology — the application of sociological principles and methods to the solution of problems in an educational system.
- electric flux density — Electric flux density is electric flux passing through a unit area perpendicular to the direction of the flux.
- epidermolysis bullosa — type of genetic skin disorder
- gas analysis recorder — A gas analysis recorder is a device which samples, records, and analyses gas.
- 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
- isopropylideneacetone — mesityl oxide.
- kleine-levin syndrome — prolonged episodes of excessive sleepiness often accompanied by overeating, hallucinations, and electroencephalogram changes, usually beginning in adolescence.
- lady of the camellias — French La Dame aux Camélias. a novel (1848) and play (1852) by Alexandre Dumas fils.
- lady windermere's fan — a comedy (1892) by Oscar Wilde.
- lafayette, marquis de — Marie Joseph Paul Yves Roch Gilbert du Motier [ma-ree zhaw-zef pawl eev rawk zheel-ber dy maw-tyey] /maˈri ʒɔˈzɛf pɔl iv rɔk ʒilˈbɛr dü mɔˈtyeɪ/ (Show IPA), Marquis de. Also, La Fayette. 1757–1834, French soldier, statesman, and liberal leader, who served in the American Revolutionary Army as aide-de-camp to General Washington, and took a leading part in the French revolutions of 1789 and 1830.
- law of thermodynamics — any of three principles variously stated in equivalent forms, being the principle that the change of energy of a thermodynamic system is equal to the heat transferred minus the work done (first law of thermodynamics) the principle that no cyclic process is possible in which heat is absorbed from a reservoir at a single temperature and converted completely into mechanical work (second law of thermodynamics) and the principle that it is impossible to reduce the temperature of a system to absolute zero in a finite number of operations (third law of thermodynamics)
- like a blue-arsed fly — in a state of frenzied activity
- luminous flux density — luminous flux per unit of cross-sectional area.
- macgillicuddy's reeks — a mountain range in County Kerry, SW Ireland. Highest peak (also highest in Ireland), Carrantuohill, 3414 feet (1041 meters).
- magnetic flux density — Also called magnetic flux density. a vector quantity used as a measure of a magnetic field. Symbol: B.
- magnetofluid dynamics — magnetohydrodynamics.
- magnetoplasmadynamics — magnetohydrodynamics.
- majority shareholding — a holding of more than half a company's shares
- mechanical solidarity — social cohesiveness that is based on shared activities, beliefs, and experiences and is characteristic of simple traditional societies.
- modulus of elasticity — the ratio of the stress applied to a body or substance to the resulting strain within the elastic limit
- mucopolysaccharidoses — Plural form of mucopolysaccharidosis.
- muon-catalysed fusion — an experimental form of nuclear fusion in which hydrogen and deuterium muonic atoms are formed. Because the mass of the muon is much larger than that of the electron, the atoms are smaller, and the nuclei are close enough for fusion to occur
- one-dimensional array — (types) An array with only one dimension; the simplest kind of array, consisting of a sequence of items ("elements"), all of the same type. An element is selected by an integer index that normally starts at zero for the first element and increases by one. The index of the last element is thus the length of the array minus one. A one-dimensional array is also known as a vector. It should not be confused with a list. In some languages, e.g. Perl, all arrays are one-dimensional and higher dimensions are represented as arrays of pointers to arrays (which can have different sizes and can themselves contain pointers to arrays and so on). A one-dimensional array maps simply to memory: the address of an element with index i is A(i) = A0 + i * s where A0 is the base address of the array and s is the size of storage used for each element, the "stride". Elements may be padded to certain address boundaries, e.g. machine words, to increase access speed, in which case the stride will be larger than the amount of data in an element.
- partially ordered set — a set in which a relation as “less than or equal to” holds for some pairs of elements of the set, but not for all.
- past its sell-by date — the last date on which perishable food should be sold, usually established with some allowance for home storage under refrigeration. Compare shelf life.
- 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.
- peroxydisulfuric acid — persulfuric acid (def 2).
- physically challenged — See example at challenged (def 1).
- prader-willi syndrome — a congenital condition characterized by obsessive eating, obesity, learning difficulties, and small genitalia
- public address system — loudspeaker
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