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

  • astronautics — the science and technology of space flight
  • astronomical — If you describe an amount, especially the cost of something as astronomical, you are emphasizing that it is very large indeed.
  • astrophysics — Astrophysics is the study of the physical and chemical structure of the stars, planets, and other natural objects in space.
  • 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
  • asynchronies — a lack of synchronism or coincidence in time.
  • asynchronism — a lack of synchronism; occurrence at different times
  • athrocytosis — the capability of a cell to receive and store matter
  • atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
  • 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.
  • atorvastatin — a statin, (C 33 H 34 FN 2 O 5) 2 ·Ca 3 H 2 O, used in the prevention and treatment of heart disease.
  • attorneyship — The office or profession of an attorney.
  • attributions — Plural form of attribution.
  • 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
  • auto-erotism — the arousal and satisfaction of sexual excitement within or by oneself, as by masturbation.
  • autodiallers — Plural form of autodialler.
  • automorphism — the practice of seeing others as having the same characteristics as oneself
  • autorickshaw — (in India) a light three-wheeled vehicle driven by a motorcycle engine
  • avariciously — characterized by avarice; greedy; covetous.
  • bachelorship — the state of being a bachelor; bachelorhood
  • backcrossing — (genetics) The crossing of a hybrid with one of its parents or an individual genetically similar to its parent.
  • bacon-slicer — a machine for cutting bacon into slices
  • bacteriostat — any substance that arrests the growth or reproduction of bacteria but does not kill them
  • banksia rose — a climbing rose, Rosa banksiae, native to China, having long, serrated leaves and white or yellow flowers.
  • barbarossa i — (Aruj) died 1518, Barbary pirate, born in Greece.
  • barnstorming — A barnstorming performance is full of energy and very exciting to watch.
  • barodynamics — the branch of mechanics concerned with heavy structures
  • barophoresis — the diffusion of suspended particles at a rate dependent on external forces
  • barquisimeto — a city in NW Venezuela. Pop: 1 009 000 (2005 est)
  • basidiocarps — Plural form of basidiocarp.
  • basidiospore — one of the spores, usually four in number, produced in a basidium
  • bedfordshire — a county of S central England, administered since 2009 by the unitary authorities of Bedford and Central Bedfordshire: mainly low-lying, with the Chiltern Hills in the south: the geographical county includes Luton, which became a separate unitary authority in 1997. Area (excluding Luton): 1192 sq km (460 sq miles)
  • 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.
  • below stairs — People sometimes use below stairs to refer to the servants in a rich household and the things that are connected with them.
  • beta orionis — Rigel
  • beta version — beta testing
  • bib overalls — overall (def 3a).
  • bichon frise — a small white poodle-like dog of European origin, with a silky, loosely curling coat
  • bio-organism — a dangerous fast-proliferating organism that could be used as the basis of a biological weapon
  • bio-security — the precautions taken to protect against the spread of lethal or harmful organisms and diseases
  • bioastronomy — the branch of biology which deals with the study or the discovery of life forms on other planets or in space
  • biochemistry — Biochemistry is the study of the chemical processes that happen in living things.
  • biocorrosion — corrosion caused by or enhanced by bacteria or other microorganisms; biologically induced corrosion.
  • biodiversity — Biodiversity is the existence of a wide variety of plant and animal species living in their natural environment.
  • biohazardous — a pathogen, especially one used in or produced by biological research.
  • biorhythmics — the study of biorhythms
  • bioterrorism — Bioterrorism is terrorism that involves the use of biological weapons.
  • bird's mouth — a right-angled notch cut in the underside of a rafter for fitting over a longitudinal member, as a wall plate.
  • bird-spotter — a bird-watcher
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