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20-letter words containing h, a, p, e

  • prepositional phrase — a phrase consisting of a preposition, its object, which is usually a noun or a pronoun, and any modifiers of the object, as in the gray desk I use.
  • priority inheritance — (parallel)   A technique for avoiding priority inversion by temporarily raising the prioriry of all processes that want to access a shared resource to the highest priority level of any of them. Priority inversion occurs where a low priority process, L is holding a resource required by a high priority process, H, but L is not running because a medium priority process, M is running. Under priority inheritance, L temporarily inherits H's priority, allowing L to run and release the resource H is waiting for. For example, an ambulance (H) is stuck behind a lorry (L) waiting at a junction (the shared resource) for a gap in a line of cars (M) using the junction. Applying priority inheritance, the cars give way to the lorry as they would to the ambulance, thus allowing the lorry and then the ambulance to use the junction.
  • proactive inhibition — the tendency for earlier memories to interfere with the retrieval of material learned later
  • prohibited substance — a substance, such as a drug, etc, that is banned or forbidden by law or other authority
  • propylphenyl acetate — phenylpropyl acetate.
  • prothonotary warbler — a wood warbler, Protonotaria citrea, of the eastern U.S., having an orange-yellow head and underparts, and bluish-gray wings and tail.
  • pseudo-psychological — of or relating to psychology.
  • pseudoparenchymatous — (in certain fungi and red algae) a compact mass of tissue, made up of interwoven hyphae or filaments, that superficially resembles plant tissue.
  • psychological moment — the proper or critical time for achieving a desired result: She found the right psychological moment to make her request.
  • punch a (time) clock — to insert a timecard into a time clock when coming to or going from work
  • put the hard word on — to ask or demand something from
  • pyroligneous alcohol — methyl alcohol.
  • pythagoras's theorem — (mathematics)   The theorem of geometry, named after Pythagoras, of Samos, Ionia, stating that, for a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. I.e. if the longest side has length A and the other sides have lengths B and C (in any units), A^2 = B^2 + C^2 (2004-02-12)
  • queen of the prairie — a tall plant, Filipendula rubra, of the rose family, having branching clusters of pink flowers, growing in meadows and prairies.
  • raynaud's phenomenon — a secondary circulatory disorder, often associated with a primary vascular disease, characterized by changes of blood flow resulting in white, bluish, or red hands and feet
  • recreational therapy — therapy by means of recreational activities engaged in by the patient
  • redheaded woodpecker — a North American woodpecker (Melanerpes erythrocephalus), with a bright-red head and neck, black back, and white underparts
  • repurchase agreement — a contract between a dealer, as a bank, and an investor, whereby the investor purchases securities with the promise that they will be bought back by the dealer on a designated date, for which the investor receives a fixed return.
  • rhineland-palatinate — a state in W Germany: formerly part of Rhine Province. 7655 sq. mi. (19,825 sq. km). Capital: Mainz.
  • ring-necked pheasant — a gallinaceous Asian bird, Phasianus colchicus, having a white band around its neck, introduced into Great Britain, North America, and the Hawaiian Islands.
  • rocky mountain sheep — bighorn.
  • rub up the wrong way — to arouse anger (in); annoy
  • satellite photograph — a photograph taken by an artificial satellite from space
  • schizoid personality — sb with identity disorder
  • schwarzschild sphere — the sphere which surrounds a non-rotating uncharged black hole, from within which no information can escape because of gravitational forces
  • second-hand bookshop — a shop selling second-hand books
  • semiautobiographical — pertaining to or being a fictionalized account of an author's own life.
  • serve a person right — to pay a person back, esp for wrongful or foolish treatment or behaviour
  • sex change operation — a surgical operation designed to change a person's physical sexual characteristics to those of the opposite sex
  • shakespearean sonnet — a sonnet form used by Shakespeare and having the rhyme scheme abab, cdcd, efef, gg.
  • sharp-tailed sparrow — a sparrow, Ammospiza caudacuta, inhabiting salt marshes in North America, having narrow, sharply pointed tail feathers.
  • some hope/not a hope — If you say 'Some hope', or 'Not a hope', you think there is no possibility that something will happen, although you may want it to happen.
  • south american plate — a major tectonic division of the earth's crust, comprising the continent of South America and several ocean basins and bounded on the north by the Caribbean Plate, on the east by the Mid-Atlantic Ridge, on the west by a submarine trench that borders the western coast of the continent, and on the south by the Antarctic Plate.
  • south temperate zone — the part of the earth's surface between the tropic of Capricorn and the Antarctic Circle.
  • span of apprehension — the maximum number of objects that can be correctly assessed after a brief presentation
  • spanish oyster plant — a composite plant, Scolymus hispanicus, of southern Europe, having spiny, thistlelike leaf margins, small yellow flowers, and an edible root.
  • spanish west african — of or relating to the former Spanish overseas territory of Spanish West Africa (now the overseas provinces of Ifni and Spanish Sahara) or its inhabitants
  • spanish-american war — the war between the U.S. and Spain in 1898.
  • spatial technologies — (company)   Distributors of the ACIS solid modelling engine.
  • special relationship — the exceptionally close political, diplomatic, cultural and historical relations between the United States and the United Kingdom
  • spherical aberration — variation in focal length of a lens or mirror from center to edge, due to its spherical shape.
  • spherical coordinate — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
  • spiral of archimedes — a curve that is the locus of a point that moves outward with uniform speed along a vector, beginning at the origin, while the vector rotates about the origin with uniform angular velocity. Equation (in polar coordinates): r = aθ.
  • splice the mainbrace — to issue and partake of an extra allocation of alcoholic spirits
  • state highway patrol — a state's road traffic police
  • step into the breach — If you step into the breach, you do a job or task which someone else was supposed to do or has done in the past, because they are suddenly unable to do it.
  • step up to the plate — to move into batting position
  • switchboard operator — a person who operates an installation in a telephone exchange, office, hotel, etc, at which the interconnection of telephone lines is manually controlled
  • take up the gauntlet — to accept a challenge
  • the (great) pyramids — the three large pyramids at Gîza, Egypt: the largest is the Pyramid of Khufu
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