dogtooth

from WordNet (r) 3.0 (2006)

dogtooth
    n 1: perennial woodland spring-flowering plant; widely
         cultivated [syn: {dogtooth violet}, {dogtooth},
         {dog's-tooth violet}]
    2: one of the four pointed conical teeth (two in each jaw)
       located between the incisors and the premolars [syn:
       {canine}, {canine tooth}, {eyetooth}, {eye tooth},
       {dogtooth}, {cuspid}]
    3: a carved pyramidal ornament; used in 13th century England

from The Collaborative International Dictionary of English v.0.48

Dogtooth \Dog"tooth`\, n.; pl. {Dogteeth}.
   1. See {Canine tooth}, under {Canine}.
      [1913 Webster]

   2. (Arch.) An ornament common in Gothic architecture,
      consisting of pointed projections resembling teeth; --
      also called {tooth ornament}.
      [1913 Webster]

   {Dogtooth spar} (Min.), a variety of calcite, in acute
      crystals, resembling the tooth of a dog. See {Calcite}.

   {Dogtooth violet} (Bot.), a small, bulbous herb of the Lily
      family (genus {Erythronium}). It has two shining flat
      leaves and commonly one large flower. [Written also
      {dog's-tooth violet}.]
      [1913 Webster]