'Dentine' definitions:

Definition of 'dentine'

noun

A calcareous material harder and denser than bone that comprises the bulk of a tooth [syn: dentine, dentin]

noun

Bone (calcified tissue) surrounding the pulp cavity of a tooth [syn: dentine, dentin]

From: GCIDE

Dentine \Den"tine\ (d[e^]n"t[i^]n), n. [Cf. F. dentine.] (Anat.) The dense calcified substance of which teeth are largely composed. It contains less animal matter than bone, and in the teeth of man is situated beneath the enamel. [1913 Webster]