fall overturn

fall overturn
mixing of waters in a lake caused by cooling of surface waters, convection currents and wind action. Presumably an American phenomenon (see also autumn overturn). Also called fall turnover

Dictionary of ichthyology. 2009.

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Look at other dictionaries:

  • fall turnover — fall overturn …   Dictionary of ichthyology

  • overturn — overturn, upset, capsize, overthrow, subvert are comparable because they carry a common basic meaning to cause to fall, or, intransitively, to fall, from the normal or proper position. Otherwise they vary widely in their applications and… …   New Dictionary of Synonyms

  • fall — Synonyms and related words: Niagara, Scotch mist, Waterloo, abate, abatement, ablate, accept, apostasy, ascend, assail, assault, associate with, attack, autumn, backslide, backsliding, bag, bank, bate, be destroyed, be eaten away, be found, be… …   Moby Thesaurus

  • overturn — I. Date: 13th century transitive verb 1. to cause to turn over ; upset < overturned the vase > 2. a. invalidate, destroy b. reverse 2a < overturn a court ruling > …   New Collegiate Dictionary

  • overturn — v. & n. v. 1 tr. cause to fall down or over; upset. 2 tr. reverse; subvert; abolish; invalidate. 3 intr. fall down; fall over. n. a subversion, an act of upsetting …   Useful english dictionary

  • overturn — Synonyms and related words: Waterloo, answer, answer conclusively, argue down, be lost, beating, bloodless revolution, bouleversement, breakdown, breakup, bring down, capsizal, capsize, careen, cataclysm, catastrophe, clean slate, clean sweep,… …   Moby Thesaurus

  • overturn — o•ver•turn v. [[t]ˌoʊ vərˈtɜrn[/t]] n. [[t]ˈoʊ vərˌtɜrn[/t]] v. t. 1) to cause to turn over on the side, face, or back 2) to destroy the power of; overthrow 3) to turn over; capsize 4) the act of overturning 5) the state of being overturned 6)… …   From formal English to slang

  • autumn turnover — the mixing of the entire lake water mass in the autumn (or fall; presumably this is an English phenomenon see also fall overturn or turnover) …   Dictionary of ichthyology

  • meromictic — |merə|miktik adjective Etymology: International Scientific Vocabulary mer (III) + mict (from Greek miktos mixed, verbal of mignynai to mix) + ic more at mix of a lake : undergoing incomplete circulation at the fa …   Useful english dictionary

  • Revolutions of 1989 — Fall of Communism redirects here. For the fall of the Soviet Union, see Dissolution of the Soviet Union. Revolutions of 1989 Top left: Round Table in Warsaw. Top right: Fall of the Berlin Wall. Middle left: Romanian Revolution. Middle right:… …   Wikipedia

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