[ ahy-suh-gram ]
/ ˈaɪ səˌgræm /

noun Meteorology, Geography.

a line representing equality with respect to a given variable, used to relate points on maps, charts, etc.


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What does "habitué" mean?
Also called isoline.

Origin of isogram

First recorded in 1885–90; iso- + -gram1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for isogram

/ (ˈaɪsəʊˌɡræm) /


another name for isopleth
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

Scientific definitions for isogram

[ īsə-grăm′ ]

See isoline.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.