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isogram

[ahy-suh-gram]
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noun Meteorology, Geography.
  1. 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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for isogram

isogram

noun
  1. 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

isogram

sə-grăm′]
  1. See isoline.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.