Definitions for "Radula"
The chitinous ribbon bearing the teeth of mollusks; -- called also lingual ribbon, and tongue. See Odontophore.
ribbon-shaped membrane with transverse rows of many small hard teeth, attached to floor of the inner mouth of molluscs (except bivalves) and used in rasping food.
The ribbon of teeth possessed by most gastropods (and most other molluscan Classes). The Muricidae have a ribbon of numerous lateral rows of teeth. Each row has a central tooth flanked on either side by a lateral tooth. Teeth may bear smaller teeth called cusps. The shape and disposition of the teeth are of taxonomic importance.