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Dogtooth spar

資料來源 : Webster's Revised Unabridged Dictionary (1913)

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

   2. (Arch.) An ornament common in Gothic architecture,
      consisting of pointed projections resembling teeth; --
      also called tooth ornament.

   {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}.]
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