Noun dentin has 2 senses
  1. dentine, dentin - a calcareous material harder and denser than bone that comprises the bulk of a tooth
    --1 is a kind of animal material
    --1 has particulars: ivory, tusk
  2. dentine, dentin - bone (calcified tissue) surrounding the pulp cavity of a tooth
    --2 is a kind of bone, os
    --2 is a part of tooth
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