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Dogtooth

1. See canine tooth, under canine.

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

(Science: chemical) dogtooth spar, a variety of calcite, in acute crystals, resembling the tooth of a dog. See calcite.

(Science: botany) dogtooth violet, a small, bulbous herb of the lily family (genus Erythronium). It has two shining flat leaves and commonly one large flower.

alternative forms: dog's-tooth violet.