noun Meteorology, Geography.

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

Origin of isogram

First recorded in 1885–90; iso- + -gram1
Also called isoline. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for isogram



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

isogram in Science



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