1. a calcareous material harder and denser than bone that comprises the bulk of a tooth; [syn: dentine, dentin]
2. bone (calcified tissue) surrounding the pulp cavity of a tooth; [syn: dentine, dentin]
WordNet (r) 3.0 (2006):
dentin
n 1: a calcareous material harder and denser than bone that
comprises the bulk of a tooth [syn: dentine, dentin]
2: bone (calcified tissue) surrounding the pulp cavity of a
tooth [syn: dentine, dentin]