radula

From Latin rādula (“scraper”).

• (US) IPA^(key): /ˈɹæd͡ʒ.ʊ.lə/

radula (plural radulae)

1. (zoology) The rasping tongue of snails and all other mollusks except bivalves.
   • 2015 February 18, Asa H. Barber, Dun Lu, Nicola M. Pugno, “Extreme strength observed in limpet teeth”, in Journal of the Royal Society Interface:

     The radula end containing the first 5–10 rows of teeth showed evidence of wear from rasping over rock surfaces during feeding and was removed using dissection.

   • 2017, Danna Staaf, Squid Empire, ForeEdge, →ISBN, page 98:

     What Kruta found in the ammonoid fossils was an unfoldable radula covered with delicate, comblike teeth.

• 
  the tongue-like radula
• 
  schematic of radula
• 
  microscopic view of radula
• 
  scrape marks on rock caused by the action of the radula of a limpet

• radula on Wikipedia.Wikipedia

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radula f (plural radulas)

1. radula

• “radula”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

From rād(ō) (“I scrape”) +‎ -ula, from Proto-Indo-European *reh₁d-. Compare with rāstrum and rallum.

• (Classical) IPA^(key): /ˈraː.du.la/, [ˈräːd̪ʊɫ̪ä]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈra.du.la/, [ˈräːd̪ulä]

rādula f (genitive rādulae); first declension

1. a scraper, scraping-iron

First-declension noun.

• “radula”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• radula in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.