/ Dictionary / Index D depository library: Meaning and Definition of Find definitions for: depos'itory li"brary Pronunciation: [key] a library designated by law to receive without charge all or a selection of the official publications of a government. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. depository deposit slip Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language