I. noun 1. a strong covering holding the pages of a book together. 2. [ mass noun] — fabric cut or woven in a strip, used for binding the edges of a piece of material. 3. (also ski binding) —
[Skiing] a mechanical device fixed to a ski to grip a ski boot, especially either of a pair used for downhill skiing which hold the toe and heel of the boot and release it automatically in a fall.
4. [ mass noun] — the action of fastening or holding together, or of being linked by chemical bonds • the binding of antibodies to cell surfaces.
5. (in Chomskyan linguistics) the relationship between a referentially dependent noun (such as a reflexive) and the independent noun phrase which determines its reference. II. adjective (of an agreement or promise) involving an obligation that cannot be broken • business agreements are intended to be legally binding.