/ Dictionary / Index I International Standard Serial Number: Meaning and Definition of Find definitions for: Interna'tional Stand'ard Se'rial Num"ber Pronunciation: [key] a unique, internationally agreed upon number code assigned to serial publications, as periodicals and yearbooks, for the purposes of identification and inventory control. Abbr.: ISSN Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. International Standard Book Number International Style 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