/ Dictionary / Index I isogriv: Meaning and Definition of Find definitions for: i•so•griv Pronunciation: (ī'su-griv), [key] — n. a line on a map or chart connecting points of uniform grid variation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isograph isohaline 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