12-letter words containing r, o, u
- attenborough — Sir David. born 1926, British naturalist and broadcaster; noted esp for his TV series Life on Earth (1978), The Living Planet (1983), The Life of Birds (1998), The Life of Mammals (2002), and First Life (2010)
- 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.
- auger shower — a shower of electrons, photons, etc. resulting from the collision of primary cosmic rays with atomic nuclei in the atmosphere
- auroral zone — the region surrounding the north or south geomagnetic pole in which the auroral phenomena take place.
- 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
- autapomorphy — (cladistics) A derived trait that is unique to a particular taxon.
- authorizable — able to be authorized
- auto-erotism — the arousal and satisfaction of sexual excitement within or by oneself, as by masturbation.
- autoanalyzer — any of various automatic devices that test and analyze chemicals, blood, etc.
- autochangers — Plural form of autochanger.
- autocratical — Autocratic.
- autocritique — the examination of factors guiding one's thoughts, beliefs and actions; self-criticism
- autodestruct — likely to or possessing the power to destroy or obliterate itself or its possessor
- autodiallers — Plural form of autodialler.
- autoexposure — A device that sets the exposure automatically on a camera or other piece of equipment.
- 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.
- averruncator — a long pair of shears used for pruning the higher branches of trees
- baby-bouncer — a seat on springs suspended from a door frame, etc, in which a baby may be placed for exercise
- back country — The back country is an area that is a long way from any city and has very few people living in it.
- backcourtman — any of the players stationed in the backcourt; a guard
- backgrounded — Simple past tense and past participle of background.
- backgrounder — A backgrounder is a short article in a newspaper or magazine that provides background information about a particular subject.
- banner cloud — a plume-shaped cloud extending downwind from an isolated mountain peak. Also called cloud banner. Compare cap cloud (def 1).
- banquet room — A banquet room is a room in a hotel where large formal meals for many people can be held.
- barbados nut — an ornamental, tropical American tree, Jatropha curcas, of the spurge family, having ivylike leaves, small, yellow or greenish-yellow flowers, and olive-shaped fruit yielding a purgative, poisonous oil.
- barcalounger — a type of reclinable armchair with an extendable footrest
- bardolatrous — relating to or characterized by bardolatry
- barge couple — either of a pair of outside rafters along the gable end of a roof
- barge course — the overhang of the gable end of a roof
- 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)
- barratrously — In a barratrous manner.
- battle group — a group of warships usually consisting of at least one aircraft carrier, other surface ships, submarines, landing craft, etc
- battleground — A battleground is the same as a battlefield.
- be queer for — to have a strong liking for; be obsessed with
- bean counter — You can describe people such as accountants and business managers as bean counters if you disapprove of them because you think they are only interested in money.
- bean sprouts — the sprouts of newly germinated mung beans, eaten as a vegetable, esp in Chinese dishes
- beardtongues — Plural form of beardtongue.