/ Dictionary / Index E expansive classification: Meaning and Definition of Find definitions for: expan'sive classifica'tion Pronunciation: [key] — Library Science. Library Science. a system of classifying books and other materials consisting of seven classification schemes, each after the first being progressively further subdivided. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. expansive bit expansivity Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language