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21-letter words containing n, l, r

  • transcendental number — a number that is not a root of any algebraic equation having integral coefficients, as π or e .
  • transformational rule — Linguistics. a rule of transformational grammar that relates two phrase markers in the course of a derivation from the deep to the surface syntactic representation of a sentence, as by reordering, inserting, or deleting elements; a rule that converts deep structures into surface structures.
  • traveling salesperson — a representative of a business firm who travels in an assigned territory soliciting orders for a company's services.
  • triangulation station — a point used in triangulation as a basis for making maps. Triangulation stations are marked in a number of ways, such as by a tapering stone pillar on a hilltop
  • trichloronitromethane — chloropicrin.
  • tubercular meningitis — an infection of the membranes of the central nervous system caused by the bacterium Mycobacterium tuberculosis; features can include fever, headache, and coma
  • twenty-two metre line — one of two lines on a rugby pitch which are twenty-two metres from the goal-line
  • ulster unionist party — a Northern Irish political party advocating the maintenance of union with the UK
  • ultraviolet astronomy — the branch of astronomy that deals with celestial objects emitting electromagnetic radiation in the ultraviolet range.
  • uncertainty principle — the principle of quantum mechanics, formulated by Heisenberg, that the accurate measurement of one of two related, observable quantities, as position and momentum or energy and time, produces uncertainties in the measurement of the other, such that the product of the uncertainties of both quantities is equal to or greater than h/ 2 π, where h equals Planck's constant.
  • undesirable discharge — a discharge under other than honorable conditions of a person from military service by administrative action.
  • universal affirmative — a proposition of the form “All S is P.” Symbol: A, a.
  • universal disk format — (storage, standard)   (UDF) A CD-ROM file system standard that is required for DVD ROMs. UDF is the OSTA's replacement for the ISO 9660 file system used on CD-ROMs, but will be mostly used on DVD. DVD multimedia disks use UDF to contain MPEG audio and video streams. To read DVDs you need a DVD drive, the kernel driver for the drive, MPEG video support, and a UDF driver. DVDs containing both UDF filesystems and ISO 9660 filesystems can be read without UDF support. UDF can also be used by CD-R and CD-RW recorders in packet writing mode.
  • university of iceland — (body, education)   The Home of Fjolnir.
  • up close and personal — face to face, intimately
  • ventriloquist's dummy — a puppet which is operated by a ventriloquist and made to appear to talk
  • venus's flower basket — a glass sponge of the genus Euplectella, inhabiting deep waters off the Philippines and Japan, having a cylindrical skeleton formed of an intricate latticework of siliceous spicules.
  • vertically challenged — short in stature.
  • virginia (rail) fence — a zigzag fence made of rails laid across one another at the ends
  • vladivostok agreement — a preliminary arms control accord concluded by Soviet leader Leonid Brezhnev and U.S. President Gerald Ford in Vladivostok, U.S.S.R., in December 1974.
  • voice-stress analyzer — a machine purported to detect stress in a human voice and to ascertain a person's truthfulness.
  • volumetric efficiency — the ratio of fluid delivered by a piston or ram pump per stroke to the displacement volume of the piston or ram
  • voluntary arrangement — a procedure enabling an insolvent company to come to an arrangement with its creditors and resolve its financial problems, often in compliance with a court order
  • voluntary association — a group of individuals joined together on the basis of mutual interest or common objectives, especially a business group that is not organized or constituted as a legal entity.
  • voluntary liquidation — the process of voluntarily terminating the affairs of a business, firm, etc, by realizing its assets to discharge its liabilities or the state of a business firm, etc, having its affairs so terminated
  • volunteers of america — a religious reform and relief organization, similar to the Salvation Army, founded in New York City in 1896 by Ballington Booth, son of William Booth, the founder of the Salvation Army. Abbreviation: VOA.
  • warm silence software — A small company run by(?) Robin Watts, producing software for the Acorn Archimedes.
  • watenstedt-salzgitter — former name of Salzgitter.
  • weak head normal form — (reduction, theory)   (WHNF) A lambda expression is in weak head normal form (WHNF) if it is a head normal form (HNF) or any lambda abstraction. I.e. the top level is not a redex. The term was coined by Simon Peyton Jones to make explicit the difference between head normal form (HNF) and what graph reduction systems produce in practice. A lambda abstraction with a reducible body, e.g. \ x . ((\ y . y+x) 2) is in WHNF but not HNF. To reduce this expression to HNF would require reduction of the lambda body: (\ y . y+x) 2 --> 2+x Reduction to WHNF avoids the name capture problem with its need for alpha conversion of an inner lambda abstraction and so is preferred in practical graph reduction systems. The same principle is often used in strict languages such as Scheme to provide call-by-name evaluation by wrapping an expression in a lambda abstraction with no arguments: D = delay E = \ () . E The value of the expression is obtained by applying it to the empty argument list:
  • weinberg-salam theory — electroweak theory.
  • well-ordering theorem — the theorem of set theory that every set can be made a well-ordered set.
  • west university place — a city in SE Texas.
  • wet collodion process — a photographic process, in common use in the mid-19th century, employing a glass photographic plate coated with iodized collodion and dipped in a silver nitrate solution immediately before use.
  • whistling in the dark — If you say that someone is whistling in the dark, you mean that they are trying to remain brave and convince themselves that the situation is not as bad as it seems.
  • white-knuckle paddler — an inexpert and timid canoeist.
  • wholesale price index — an indicator of price changes in the wholesale market
  • william the conqueror — ("the Conqueror") 1027–87, duke of Normandy 1035–87; king of England 1066–87 (son of Robert I, duke of Normandy).
  • wilson's storm petrel — a small petrel, Oceanites oceanicus, that breeds in the Southern Hemisphere but ranges into the North Atlantic and Pacific oceans.
  • worth someone's while — worth someone's time, consideration, etc.; profitable in some way
  • xilinx netlist format — (language, electronics)   (XNF) A Hardware Description Language for electronic circuit design, developed by Xilinx, Inc..
  • zero-emission vehicle — a vehicle, as an automobile, that does not directly produce atmospheric pollutants. Abbreviation: ZEV.
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