'hard-bound' definitions:

Definition of 'hard-bound'

From: GCIDE

hardback \hard"back`\, hardbacked \hard"backed`\, hardcover \hard"cov*er\ hard-bound \hard"-bound`\adj. Having rigid front and back covers, usually boards covered with paper, cloth, or leather; -- of books. Contrasted with softcover and paperback. [WordNet 1.5]