/ Dictionary / Index B back matter: Meaning and Definition of Find definitions for: back' mat"ter Pronunciation: [key] — Print. Print. the parts of a book that appear after the main text, as bibliography, index, and appendixes. Also calledCf. front matter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. back lot back molding Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language