odontophore

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A structure at the base of the mouth of most mollusks over which the radula is drawn back and forth in breaking up food.

Century Dictionary and Cyclopedia

1. n. The whole radular apparatus, buccal mass, lingual ribbon, or “tongue” of certain mollusks. It consists of the odontophoral cartilages as a framework or skeleton, and of a subradular membrane continuous with the lining of the oral cavity and secreting the chitinous cuticular radula or rasping surface beset with teeth, and moved by extrinsic and intrinsic muscles. (See radula.) It is the most general or comprehensive name of the parts otherwise known as the rasp, radula, tongue, lingual ribbon, and buccal mass; but radula is especially the chitinous band of teeth or rasp borne upon the odontophore.

Wiktionary

1. n. a projection in the mouths of most molluscs; it is used, with the radula to break up food

GNU Webster's 1913

1. n. (Zoöl.) A special structure found in the mouth of most mollusks, except bivalves. It consists of several muscles and a cartilage which supports a chitinous radula, or lingual ribbon, armed with teeth. Also applied to the radula alone. See radula.