'Dogtooth violet' definitions:

Definition of 'dogtooth violet'

noun

Perennial woodland spring-flowering plant; widely cultivated [syn: dogtooth violet, dogtooth, dog's-tooth violet]

From: GCIDE

Violet \Vi"o*let\, n. [F. violette a violet (cf. violet violet-colored), dim. of OF. viole a violet, L. viola; akin to Gr. ?. Cf. Iodine.]
1. (Bot.) Any plant or flower of the genus Viola, of many species. The violets are generally low, herbaceous plants, and the flowers of many of the species are blue, while others are white or yellow, or of several colors, as the pansy (Viola tricolor). [1913 Webster]
Note: The cultivated sweet violet is Viola odorata of Europe. The common blue violet of the eastern United States is Viola cucullata; the sand, or bird-foot, violet is Viola pedata. [1913 Webster]
2. The color of a violet, or that part of the spectrum farthest from red. It is the most refrangible part of the spectrum. [1913 Webster]
3. In art, a color produced by a combination of red and blue in equal proportions; a bluish purple color. --Mollett. [1913 Webster]
4. (Zool.) Any one of numerous species of small violet-colored butterflies belonging to Lycaena, or Rusticus, and allied genera. [1913 Webster] [1913 Webster]
Corn violet. See under Corn.
Dame's violet. (Bot.) See Damewort.
Dogtooth violet. (Bot.) See under Dogtooth.
Water violet (Bot.), an aquatic European herb ({Hottonia palustris}) with pale purplish flowers and pinnatifid leaves. [1913 Webster]

From: GCIDE

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]