/ Dictionary / Index T three-quarter binding: Meaning and Definition of Find definitions for: three'-quarter bind'ing Pronunciation: [key] — Bookbinding. Bookbinding. a binding in which the material used for the back extends further over the covers than in half binding. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. three-quarter armor three-quarter nelson Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language