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12-letter words containing um

  • presumptuous — full of, characterized by, or showing presumption or readiness to presume in conduct or thought, as by saying or doing something without right or permission.
  • prime number — a positive integer that is not divisible without remainder by any integer except itself and 1, with 1 often excluded: The integers 2, 3, 5, and 7 are prime numbers.
  • progymnasium — (in Europe) a school that prepares pupils for secondary education (the gymnasium)
  • protactinium — a radioactive, metallic element. Symbol: Pa; atomic number: 91.
  • prothalamium — prothalamion.
  • pseudopodium — pseudopod.
  • pumice stone — abrasive stone used for exfoliating
  • pumice-stone — Also called pumice stone. a porous or spongy form of volcanic glass, used as an abrasive.
  • pump priming — the spending of government funds in commercial enterprises, to stimulate the national economy.
  • pumpernickel — a coarse, dark, slightly sour bread made of unbolted rye.
  • pumpkin head — a slow or dim-witted person; dunce.
  • pygmy possum — any of various small Australasian marsupials, esp the burramys
  • quadriennium — quadrennium.
  • quadrominium — a building consisting of four individually owned apartments or living units.
  • quadrumanous — four-handed; having all four feet adapted for use as hands, as monkeys.
  • quantum cell — (electronics, computing)   (Or "quantum dot cell") A structure comprising four quantum dots arranged in a square, with two diagonally opposed dots containing electron charges. One diagonal containing charges is arbitrarily defined as representing a value of '1', the other as '0'. In a five-dot cell, the fifth, central dot contains no charge. See also: quantum cell wire, quantum-dot cellular automata.
  • quantum jump — Physics. an abrupt transition of a system described by quantum mechanics from one of its discrete states to another, as the fall of an electron in an atom to an orbit of lower energy.
  • quantum leap — Physics. an abrupt transition of a system described by quantum mechanics from one of its discrete states to another, as the fall of an electron in an atom to an orbit of lower energy.
  • quinquennium — a period of five years.
  • radiothorium — a disintegration product of thorium.
  • reaccumulate — to gather or collect, often in gradual degrees; heap up: to accumulate wealth.
  • reassumption — the act or process of reassuming something
  • receptaculum — a vessel, receptacle or container
  • repositorium — a place for the storage of valuables, as in an ancient Roman temple or a church.
  • rheumatismal — of or relating to rheumatism
  • rheumatology — the study and treatment of rheumatic diseases.
  • rockumentary — a documentary about rock music.
  • rubbish dump — a place or area where waste materials are dumped
  • rumble strip — one of a series of rough or slightly raised strips of pavement on a highway, intended to slow down the speed of vehicles, as before a toll booth.
  • ruminatingly — in a ruminating manner
  • rummage sale — a sale of miscellaneous articles, old or new, as items contributed to raise money for charity, of unclaimed goods at a wharf or warehouse, or of odds and ends of merchandise at a shop.
  • rumor-monger — a person given to spreading rumors, often maliciously.
  • running jump — a jump made after running a short distance
  • sales volume — quantity of goods sold
  • salutatorium — a porch or room in a monastery or church serving as a meeting or almsgiving place for monks or priests and the laity.
  • satsuma ware — a Japanese pottery from Kyushu, first produced in the early 17th century and after 1800 having a crackle glaze and overglaze polychrome enameling and gilding.
  • schuman plan — the plan for establishing the European Coal and Steel Community, proposed by Robert Schuman, French political leader, in 1950.
  • scissor jump — a type of jump involving a scissor-like movement of the legs
  • scribbly gum — any species of the genus Eucalyptus with smooth white bark marked with random patterns made by wood-boring insects
  • sea cucumber — any echinoderm of the class Holothuroidea, having a long, leathery body with tentacles around the anterior end.
  • serpentarium — a place where snakes are housed, especially for exhibition.
  • short column — a column whose relative dimensions ensure that when it is overloaded it fails by crushing, rather than buckling
  • show jumping — sport: horseriding event
  • sinus iridum — (Bay of Rainbows) a semicircular dark plain in the second quadrant of the face of the moon.
  • sixth column — the persons residing in a country at war who are devoted to aiding the fifth column in its activities, especially by lowering morale, spreading rumors, etc.
  • slum-dweller — a person who lives in a slum.
  • slumber wear — nightclothes
  • slumberingly — in a slumbering manner
  • slumbershade — sleep shade.
  • slumpflation — a situation in which economic depression is combined with increasing inflation
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