Dictionary of Human Evolution and Biology

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One of four types of tooth found in heterodont mammals. Incisors are flat, spatulate, single-rooted teeth, usually in the front and center of the mouth and that serve for cutting, gnawing and scraping.

See also canines, premolars, and molars.

See also shovel-shaped incisor and barrel-shaped incisor.

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From "Dictionary of Nursing and Individual Health Care"