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12-letter words containing o, u, r, i

  • archesporium — archespore.
  • archosaurian — belonging to or characteristic of the archosaurs
  • argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
  • arousability — to stimulate sexually.
  • arseniferous — Lb geology Containing or producing arsenic.
  • arsino group — the univalent group H 2 As−.
  • articulation — Articulation is the action of producing a sound or word clearly, in speech or music.
  • articulators — Plural form of articulator.
  • articulatory — an act or the process of articulating: the articulation of a form; the articulation of a new thought.
  • arts council — an organization that provides funding for a variety of arts activities
  • astronautics — the science and technology of space flight
  • astrotourist — a person who pays to travel into space as a form of recreation
  • astroturfing — a PR tactic used in politics and advertising in which actors are paid to display overt and apparently spontaneous grassroots support for a particular product, policy, or event
  • atmospherium — an optical system used to simulate images of atmospheric phenomena, as cloud formations, storms, and day and night, on the inside of a dome.
  • attributions — Plural form of attribution.
  • au contraire — on the contrary
  • auction room — a room in a building where auctions take place
  • auctioneered — Simple past tense and past participle of auctioneer.
  • auditorially — Anatomy, Physiology. pertaining to hearing, to the sense of hearing, or to the organs of hearing.
  • australopith — (archaeology, anthropology, paleonotology) Of or pertaining to the extinct hominid primates, of the genus Australopithecus, from the Pleistocene period.
  • austronesian — of or relating to Austronesia, its peoples, or their languages
  • authorizable — able to be authorized
  • auto-erotism — the arousal and satisfaction of sexual excitement within or by oneself, as by masturbation.
  • autocratical — Autocratic.
  • autocritique — the examination of factors guiding one's thoughts, beliefs and actions; self-criticism
  • autodiallers — Plural form of autodialler.
  • autographing — Present participle of autograph.
  • autoinjector — A medical device designed to deliver a single dose of a particular, typically life-saving, drug.
  • automorphism — the practice of seeing others as having the same characteristics as oneself
  • autoreactive — (immunology, medicine) Acting against the organism by which it was produced.
  • autorhythmic — That generates its own rhythm.
  • autorickshaw — (in India) a light three-wheeled vehicle driven by a motorcycle engine
  • autorotation — the continuous rotation of a body in an airflow, such as that of the rotor blades of a helicopter in an unpowered descent
  • avariciously — characterized by avarice; greedy; covetous.
  • barium oxide — a white or yellowish-white poisonous heavy powder used esp as a dehydrating agent. Formula: BaO
  • barquisimeto — a city in NW Venezuela. Pop: 1 009 000 (2005 est)
  • behaviourism — Behaviourism is the belief held by some psychologists that the only valid method of studying the psychology of people or animals is to observe how they behave.
  • binocularity — binocular characteristics
  • bio-security — the precautions taken to protect against the spread of lethal or harmful organisms and diseases
  • biohazardous — a pathogen, especially one used in or produced by biological research.
  • biomolecular — relating to a biomolecule
  • bioturbation — the stirring of sediment by organisms
  • bird's mouth — a right-angled notch cut in the underside of a rafter for fitting over a longitudinal member, as a wall plate.
  • black liquor — (in making wood pulp for paper) the liquor that remains after digestion.
  • blue pointer — a large shark, Isuropsis mako, of Australian coastal waters, having a blue back and pointed snout
  • blue vitriol — the fully hydrated blue crystalline form of copper sulphate
  • boar-hunting — the practice of hunting wild boars
  • boarding out — the local-authority practice of placing a client in a foster family or voluntary establishment and paying for it
  • boiler house — a building housing a boiler
  • boisterously — rough and noisy; noisily jolly or rowdy; clamorous; unrestrained: the sound of boisterous laughter.
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