12-letter words containing r, e, t, a
- auctioneered — Simple past tense and past participle of auctioneer.
- auger effect — the spontaneous emission of an electron instead of a photon by an excited ion as a result of a vacancy being filled in an inner electron shell
- 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.
- autoanalyzer — any of various automatic devices that test and analyze chemicals, blood, etc.
- autochangers — Plural form of autochanger.
- 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.
- autoinjector — A medical device designed to deliver a single dose of a particular, typically life-saving, drug.
- autoreactive — (immunology, medicine) Acting against the organism by which it was produced.
- averruncator — a long pair of shears used for pruning the higher branches of trees
- awe-stricken — filled with awe.
- axisymmetric — being symmetrical around an axis
- azathioprine — a synthetic drug that suppresses the normal immune responses of the body and is administered orally during and after organ transplantation and also in certain types of autoimmune disease. Formula: C9H7N7O2S
- b-s particle — a neutral meson with a mass 10,507 times that of the electron and a mean lifetime of approximately 1.6 X 10 -12 seconds.
- baby brother — a younger brother
- baby's-tears — a mosslike plant, Soleirolia (or Helxine) soleirolii, of the nettle family, native to Corsica and Sardinia, having small, roundish leaves and minute flowers.
- baccalauréat — (esp in France) a school-leaving examination that qualifies the successful candidates for entrance to university
- bach trumpet — a modern small three-valved trumpet for playing clarino passages in Bach's music
- bachelorette — A bachelorette is a woman who has never married.
- back scatter — the deflection of nuclear particles or of radiation in a scattering process through an angle greater than 90°.
- back stretch — the straight part of a race track opposite the part leading to the finish line.
- backtrackers — Plural form of backtracker.
- bacteria bed — a layer of sand or gravel used to expose sewage effluent, in its final stages, to air and the action of microorganisms
- bactericidal — any substance capable of killing bacteria.
- bactericides — Plural form of bactericide.
- bacteriocide — Alternative form of bactericide.
- bacteriology — Bacteriology is the science and the study of bacteria.
- bacteriostat — any substance that arrests the growth or reproduction of bacteria but does not kill them
- bad-tempered — Someone who is bad-tempered is not very cheerful and gets angry easily.
- badger state — any of various burrowing, carnivorous mammals of the family Mustelidae, as Taxidea taxus, of North America, and Meles meles, of Europe and Asia.
- bag snatcher — a thief whose main tactic is to grab women's handbags and run off with them
- bairnsfather — Bruce. 1888–1959, British cartoonist, born in India: best known for his cartoons of the war in the trenches during World War I
- ballad metre — the metre of a ballad stanza
- ballet skirt — a full skirt, often made with several layers of fabric, typical of those worn by ballet dancers
- balloon tire — a wide, deep-walled pneumatic tire with relatively low air pressure to lessen the shock of bumps
- balloon tyre — a pneumatic tyre containing air at a relatively low pressure and having a wide tread
- ballot paper — A ballot paper is a piece of paper on which you indicate your choice or opinion in an election or ballot.
- baluchithere — a hornless rhinoceros of the extinct genus Baluchitherium that inhabited central Asia during the Oligocene and early Miocene epochs: the largest land mammal known.
- bandersnatch — a fictional creature created by Lewis Carroll in his poem Jabberwocky, and appearing also in The Hunting of the Snark and Through the Looking-Glass
- bankruptcies — Plural form of bankruptcy.
- banquet room — A banquet room is a room in a hotel where large formal meals for many people can be held.
- baptisteries — Plural form of baptistery.
- bar sinister — the condition, implication, or stigma of being of illegitimate birth
- baraesthesia — the ability to sense pressure
- barbecue pit — a trench in which wood or charcoal is burned for barbecuing
- barbecue set — a set of tools used for barbecuing