isogeotherm: Meaning and Definition of

i•so•ge•o•therm

Pronunciation: (ī"su-jē'u-thûrm"), [key]
— n.
  1. an imaginary line connecting all points within the earth having the same mean temperature. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.