tooth

  1. Noun.  A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for eating.
  2. Noun.  A sharp projection on the blade of a saw or similar implement.
  3. Noun.  A projection on the edge of a gear that meshes with similar projections on adjacent gears, or on the circumference of a cog that engages with a chain.
  4. Noun.  (botany) A pointed projection from the margin of a leaf.

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This entry was last updated on RefTopia from its source on 3/20/2012.