radula

[raj-oo-luh]
noun, plural radulae [raj-oo-lee] .
a 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.

Origin:
1745–55; < Neo-Latin rādula, Latin: scraper, equivalent to rād(ere) to scrape, rub + -ula -ule

radular, adjective
subradular, adjective
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World English Dictionary
radula (ˈrædjʊlə)
 
n , pl -lae
a horny tooth-bearing strip on the tongue of molluscs that is used for rasping food
 
[C19: from Late Latin: a scraping iron, from Latin rādere to scrape]
 
'radular
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
Encyclopedia

radula

horny, ribbonlike structure found in the mouths of all mollusks except the bivalves. The radula, part of the odontophore, may be protruded, and it is used in drilling or in rasping food particles from a surface. It is supported by a cartilage-like mass and is covered with rows of many small teeth (denticles). New sections are constantly produced to replace those worn away at the front.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Final familial placement must await the acquisition and study of the radula and soft pans of this new taxon.
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