[ˈradjʊlə], (Noun)

Definitions:
- (in a mollusc) a structure of tiny teeth used for scraping food particles off a surface and drawing them into the mouth


Phrases:

Origin:
early 18th century (denoting a file or rasp): from Latin, literally ‘scraper’, from radere ‘to scrape’. The sense relating to molluscs' teeth dates from the mid 19th century