Source : Webster's Revised Unabridged Dictionary (1913)

Canine \Ca*nine"\, a. [L. caninus, fr. canis dog: cf. F. canin.
   See {Hound}.]
   1. Of or pertaining to the family {Canid[ae]}, or dogs and
      wolves; having the nature or qualities of a dog; like that
      or those of a dog.

   2. (Anat.) Of or pertaining to the pointed tooth on each side
      the incisors.

   {Canine appetite}, a morbidly voracious appetite; bulimia.

   {Canine letter}, the letter r. See {R}.

   {Canine madness}, hydrophobia.

   {Canine tooth}, a tooth situated between the incisor and
      bicuspid teeth, so called because well developed in dogs;
      usually, the third tooth from the front on each side of
      each jaw; an eyetooth, or the corresponding tooth in the
      lower jaw.

Source : WordNet®

canine tooth
     n : one of the four pointed conical teeth (two in each jaw)
         located between the incisors and the premolars [syn: {canine},
          {eyetooth}, {eye tooth}, {dogtooth}, {cuspid}]