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isohume

American

[ahy-suh-hyoom] / ˈaɪ səˌhjum /

noun

Meteorology.

a line on a weather map or chart connecting points of equal relative humidity.

Etymology

Origin of isohume

iso- + -hume, extracted from humidity

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.