1. (

• tooth

) hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense ;

2. (

• tooth ,

) something resembling the tooth of an animal ;

3. (

• tooth ,

) toothlike structure in invertebrates found in the mouth or alimentary canal or on a shell ;

4. (

• tooth

) a means of enforcement; "the treaty had no teeth in it" ;

5. (

• tooth ,

) one of a number of uniform projections on a gear ;