(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)
... extremely simple, and were decorated with a "peculiar and shallow class of notched ornament", of which many examples exist in other buildings of the period; while the mouldings of William of Sens "exhibit much variety, but are most remarkable for the profusion of billet-work, zigzag and dogtooth, that are lavished upon them." The first two methods of ornamentation are Norman, the last an Early English characteristic. This mixture is not confined to the details of decoration but may be observed also in the indiscriminate employment of round and pointed arches. This feature, ... — The Cathedral Church of Canterbury [2nd ed.]. • Hartley Withers
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