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isopleth

[ahy-suh-pleth] /ˈaɪ səˌplɛθ/
noun
1.
a line drawn on a map through all points having the same numerical value, as of a population figure or geographic measurement.
Also called isarithm.
Origin
1905-1910
1905-10; < Greek isoplēthḗs equal in number, equivalent to iso- iso- + plêth(os) a great number + -ēs adj. suffix
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for isopleth
  • In order to measure the plume core size, develop an isopleth representing the contaminant specific threshold concentration.
British Dictionary definitions for isopleth

isopleth

/ˈaɪsəʊˌplɛθ/
noun
1.
a line on a map connecting places registering the same amount or ratio of some geographical or meteorological phenomenon or phenomena Also called isogram, isoline
Word Origin
C20: from Greek isoplēthēs equal in number, from iso- + plēthos multitude, great number
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
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Difficulty index for isopleth

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Word Value for isopleth

13
14
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