- a line on a weather map connecting points that receive equal amounts of sunshine.
Origin of isohel
1900–05; iso- + -hel < Greek hḗlios sun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a line on a map connecting places with an equal period of sunshine
C20: from iso- + Greek hēlios sun
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
- A line drawn on a weather map connecting points that receive equal amounts of sunlight.
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