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单词 radula
释义

WordReference Random House Unabridged Dictionary of American English © 2024
rad•u•la  (rajŏŏ lə),USA pronunciation n., pl. -lae 
    (-lē′).USA pronunciation 
  1. Invertebratesa chitinous band in the mouth of most mollusks, set with numerous, minute, horny teeth and drawn backward and forward over the floor of the mouth in the process of breaking up food.
  • Neo-Latin rādula, Latin: scraper, equivalent. to rād(ere) to scrape, rub + -ula -ule
  • 1745–55
radu•lar, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
radula /ˈrædjʊlə/ n ( pl -lae / -ˌliː/)
  1. a horny tooth-bearing strip on the tongue of molluscs that is used for rasping food
Etymology: 19th Century: from Late Latin: a scraping iron, from Latin rādere to scrape

ˈradular adj
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