The Collaborative International Dictionary
Radulae
Radula \Rad"u*la\ (r[a^]d"[-u]*l[.a]), n.; pl. Radul[ae] (r[a^]d"[-u]*l[=e]). [L., a scraper, fr. radere to scrape.] (Zo["o]l.) The chitinous ribbon bearing the teeth of mollusks; -- called also lingual ribbon, and tongue. See Odontophore.
Wiktionary
radulae
n. (plural of radula English)
WordNet
radulae
See radula