/ Dictionary / Index I International Standard Book Number: Meaning and Definition of Find definitions for: Interna'tional Stan'dard Book' Num"ber Pronunciation: [key] a unique, internationally utilized number code assigned to books for the purposes of identification and inventory control. Abbr.: ISBN Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. International Scientific Vocabulary International Standard Serial Number 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