/ Dictionary / Index I isogradient: Meaning and Definition of Find definitions for: i•so•gra•di•ent Pronunciation: (ī"su-grā'dē-unt), [key] — n. Meteorol. a line on a weather map or chart connecting points having the same horizontal gradient of a meteorological quantity, as temperature, pressure, or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isogonic isograft Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language