isotherm
Americannoun
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Meteorology. a line on a weather map or chart connecting points having equal temperature.
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Also called isothermal line. Physics. a curve on which every point represents the same temperature.
noun
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a line on a map linking places of equal temperature
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physics a curve on a graph that connects points of equal temperature
Etymology
Origin of isotherm
First recorded in 1855–60; back formation from isothermal
Vocabulary lists containing isotherm
Weather and Climate - Middle School
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Earth Science - Middle School
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Earth Science - High School
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A large area in the interior of Greenland, and one of about equal extent around the pole, are within the isotherm of 32�.
From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" by Various
Its summit displays a glittering ice-cap, and we are certain to find the proper isotherm by climbing its umbrageous sides.
From Life: Its True Genesis by Wright, R. W.
The southern limit of its distribution approximates the isotherm of forty-five degrees.
From Butterflies Worth Knowing by Weed, Clarence M.
An isotherm is an imaginary line on the earth’s surface, passing through places having a corresponding temperature either throughout the year or at any particular period.
From Meteorology or Weather Explained by M'Pherson, J. G.
The polar limits of the temperate zones are fixed by the isotherm of 50� for the warmest month.
From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" by Various
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.
