Meaning of isotherm

i•so•therm

Pronunciation: (ī'su-thûrm"), [key]
— n.
  1. a line on a weather map or chart connecting points having equal temperature.
  2. Also calleda curve on which every point represents the same temperature.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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