isotherm

[ ahy-suh-thurm ]
/ ˈaɪ səˌθɜrm /

noun

Meteorology. a line on a weather map or chart connecting points having equal temperature.
Also called isothermal line .Physics. a curve on which every point represents the same temperature.

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Origin of isotherm

First recorded in 1855–60; back formation from isothermal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for isotherm

British Dictionary definitions for isotherm

isotherm
/ (ˈaɪsəʊˌθɜːm) /

noun

a line on a map linking places of equal temperature
physics a curve on a graph that connects points of equal temperature
Also called: isothermal, isothermal line
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 isotherm

isotherm
[ īsə-thûrm′ ]

A line drawn on a weather map connecting points that have the same temperature. Each point can mark one temperature reading or an average of several readings.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.