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radula
A structure found in the mouth of some mollusks which is used to rasp food. The radula consists of a tongue-like strip of horny material (modified epithelium, which bears many rows of chitnous or horny teeth. In slugs and snails, it is used to rasp off pieces of leafy food. In some marine mollusks, it is modified for boring or scraping.
Related category
• ZOOLOGY
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