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isotach

[ahy-suh-tak] /ˈaɪ səˌtæk/
noun, Meteorology
1.
a line on a weather map or chart connecting points where winds of equal speeds have been recorded.
Origin
1945-1950
1945-50; iso- + -tach < Greek tachýs swift; see tachy-
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for isotach

isotach

/ˈaɪsəʊˌtæk/
noun
1.
a line on a map connecting points of equal wind speed
Word Origin
from iso- + Greek takhos speed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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12
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