/ Dictionary / Index I isobathytherm: Meaning and Definition of Find definitions for: i•so•bath•y•therm Pronunciation: (ī"su-bath'u-thûrm"), [key] — n. a line on a chart or diagram of a body of water, connecting depths having the same temperature. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isobathic isobront Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language