from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A flexible tonguelike organ in certain mollusks, having rows of horny teeth on the surface.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The rasping tongue of snails and most other mollusks.
from the GNU version of the Collaborative International Dictionary of English
- n. The chitinous ribbon bearing the teeth of mollusks; -- called also lingual ribbon, and tongue. See odontophore.
from The Century Dictionary and Cyclopedia
- n. In conchology, the tongue or lingual ribbon of a mollusk, specifically called odontophore, and more particularly, the rasping surface or set of teeth of the odontophore, which bites like a file.
Latin rādula, scraper, from rādere, to scrape.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin rādula ("scraper"). (Wiktionary)