/ Dictionary / Index I isocheim: Meaning and Definition of Find definitions for: i•so•cheim Pronunciation: (ī'su-kīm"), [key] — n. Climatol. a line on a map connecting points that have the same mean winter temperature. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isochasm isochor Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language