Definition of: binding

(bīn′ding) adjective
Causing to be bound; obligatory.
—noun
1. The act of fastening or joining.
2. Anything that binds objects to each other, as the cover of a book.
3. Any thickening substance added to a mixture to cause the various ingredients to adhere; a binder.
4. A strip sewed over an edge for protection.
5. A course of masonry by which adjoining parts are secured.
—bind′ing·ly adverb
—bind′ing·ness noun