| Noun | 1. | book binding - the protective covering on the front, back, and spine of a book; "the book had a leather binding"book, volume - physical objects consisting of a number of pages bound together; "he used a large book as a doorstop" half binding - book binding in which the spine and part of the sides are bound in one material and the rest in another protective cover, protective covering, protection - a covering that is intend to protect from damage or injury; "they had no protection from the fallout"; "wax provided protection for the floors" three-quarter binding - the spine and much of the sides are a different material from the rest of the cover |