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isocheim

or i·so·chime

[ahy-suh-kahym]
noun Climatology.
  1. a line on a map connecting points that have the same mean winter temperature.
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Origin of isocheim

1860–65; iso- + -cheim < Greek cheîma winter cold
Related formsi·so·chei·mal, i·so·chei·me·nal [ahy-suh-kahy-muh-nl] /ˌaɪ səˈkaɪ mə nl/, i·so·cheim·ic, i·so·chi·mal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for isocheim

isocheim

isochime

noun
  1. a line on a map connecting places with the same mean winter temperature
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Derived Formsisocheimal, isocheimenal or isochimal, adjective

Word Origin for isocheim

C19: from iso- + Greek kheima winter weather
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