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20-letter words containing pl

  • interplanetary space — the region of space occurring around the sun and planets of the solar system. The density is normally negligible although cosmic rays, meteorites, gas clouds, etc, can occur
  • learned helplessness — the act of giving up trying as a result of consistent failure to be rewarded in life, thought to be a symptom of depression
  • little ringed plover — a small grey and brown coloured plover which breeds in Europe and Asia and migrates to Africa for winter
  • material implication — equivalence (def 4a).
  • multiple inheritance — (programming)   In object-oriented programming, the possibility that a class may have more than one direct superclass in the class hierarchy. The opposite is single inheritance.
  • multiple personality — a rare disorder in which an individual displays several functionally dissociated personalities, each of a complexity comparable to that of a normal individual.
  • multiplication table — Arithmetic. a tabular listing of the products of any two numbers of a set, usually of the integers 1 through 10 or 1 through 12.
  • multiplicative group — a group in which the operation of the group is multiplication.
  • multistep hydroplane — a motorship having a flat bottom built as a series of planes inclined forward, the ship planing on each from stem to stern as its speed increases.
  • nine plus zero array — the arrangement of microtubules characteristic of basal bodies and centrioles, consisting of nine evenly spaced triplets between the outer and inner walls of the structure and having no central microtubules. Symbol: 9 + 0.
  • north american plate — a major tectonic division of the earth's crust, comprising Greenland and the continent of North America and the suboceanic Labrador and North American Basins, and bounded on the east by the Mid-Atlantic Ridge, on the south by the Caribbean and South American Plates, and on the west by the San Andreas fault and Aleutian Trench.
  • objective complement — object complement.
  • parametric amplifier — a device, as an electron tube or transistor, that amplifies a high-frequency input signal by sinusoidally varying the reactance of the circuit.
  • peasecod breastplate — a breastplate having a long central ridge terminating in a raised area overhanging the waistline.
  • people's paths cross — If you cross someone's path or if your paths cross, you meet them by chance.
  • planetary precession — the small component of the precession of the equinoxes contributed by the motion of the ecliptic, the change in orientation of the plane of the earth's orbit being produced by the gravitational attraction of the planets.
  • planned obsolescence — a method of stimulating consumer demand by designing products that wear out or become outmoded after limited use.
  • planning application — In Britain, a planning application is a formal request to a local authority for permission to build something new or to add something to an existing building.
  • play catch-up (ball) — to try to equal or surpass one's opponent in competition, as a ballgame, in which one is behind
  • play merry hell with — to disturb greatly; disrupt
  • play pass-the-parcel — to try to avoid a responsibility, or blame, by passing it on to someone else
  • pleased with oneself — If someone seems very satisfied with something they have done, you can say that they are pleased with themselves, especially if you think they are more satisfied than they should be.
  • pledge of allegiance — a solemn oath of allegiance or fidelity to the U.S., beginning, “I pledge allegiance to the flag,” and forming part of many flag-saluting ceremonies in the U.S.
  • population explosion — the rapid increase in numbers of a particular species, especially in the world's human population since the end of World War II, attributed to an accelerating birthrate, a decrease in infant mortality, and an increase in life expectancy.
  • portfolio employment — the practice of working for several employers simultaneously rather than working full-time for a single employer
  • rattlesnake plantain — any of several low, terrestrial orchids, as Goodyera repens, of northern temperate regions, having a basal rosette of leaves with white veins and a one-sided spike of white flowers.
  • sailor's breastplate — a knot consisting of three overlapping loops formed by a single rope passed alternately over and under itself at crossings.
  • 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.
  • spanish oyster plant — a composite plant, Scolymus hispanicus, of southern Europe, having spiny, thistlelike leaf margins, small yellow flowers, and an edible root.
  • splice the mainbrace — to issue and partake of an extra allocation of alcoholic spirits
  • split the difference — the state or relation of being different; dissimilarity: There is a great difference between the two.
  • step up to the plate — to move into batting position
  • supplemental plumage — the third plumage assumed by certain birds having three different plumages in their annual cycle of molts.
  • supplementary angles — either of two angles that added together produce an angle of 180°.
  • the beautiful people — rich, fashionable people in international high society
  • triple witching hour — the last hour of trading on the New York Stock Exchange on the four Fridays each year when stock options, stock index futures, and options on such futures simultaneously expire: regarded as a time of extreme volatility in trading.
  • unemployment benefit — an allowance of money paid, usually weekly, to an unemployed worker by a state or federal agency or by the worker's labor union or former employer during all or part of the period of unemployment.
  • unemployment figures — statistics relating to the number of people who are out of work
  • upset the apple cart — to disrupt a procedure, spoil someone's plans, etc.
  • white people problem — a fairly minor problem, complaint, etc., associated with a relatively high standard of living; a first world problem.
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