radula
noun
- a horny band or ribbon in mollusks other than bivalves that bears minute chitinous teeth on its dorsal surface and scrapes or tears off food and draws it into the mouth
Wiktionary
Pronunciation: /ˈɹæd͡ʒ.ʊ.lə/
noun
Etymology: Etymology tree Latin rādulabor. English radula Borrowed from Latin rādula (“scraper”).
- The rasping tongue of snails and all other mollusks except bivalves.
“The radula end containing the first 5–10 rows of teeth showed evidence of wear from rasping over rock surfaces during feeding and was removed using dissection.”
“What Kruta found in the ammonoid fossils was an unfoldable radula covered with delicate, comblike teeth.”