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}.]