/ Dictionary / Index I ISV: Meaning and Definition of Find definitions for: ISV Pronunciation: [key] International Scientific Vocabulary. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Istria it 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