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A structure in most mollusks over which the radula is drawn back and forth during feeding.

o′don·toph′o·ral (ō′dŏn-tŏf′ər-əl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Zoology) an oral muscular protrusible structure in molluscs that supports the radula
odontophoral, ˌodonˈtophorous adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Female (n=5): L= 1.6-1.8 (1.6+-0.07) mm; a= 36.4-42.4 (38.4+-2.31); b= 4.5-5.4(5.1+-0.31); c= 36.4-38.7 (37.5+-0.75); c'= 1.5-1.7 (1.63+-0.08); V%= 47-52 (49.7+-1.56); odontostyle= 42-44 (42.6+-0.81) um; odontophore = 38.4-44.6 (41.6+-1.79) um.
(O.) brasiliensis, the madreporite and odontophore are homologous to those of other recent, non-paxillosid asteroids, and follow the Late Madreporic Mode.
For the main terminology, including that relating to odontophore muscles, see Simone (2011).
An elongate muscle slip originates on the dorsal surface of the pharyngeal retractor and inserts at the end of the odontophore sac.
Bilaterally symmetrical motor neurons, located in the paired buccal ganglia in Helisoma, control the feeding musculature and associated structures: the radula, odontophore, salivary glands, and esophagus.
On contact with the prey, the predator extends the oral region slightly, exposing the inner lip area, the odontophore is then rapidly thrust forward, the anterior portion with enveloping radula emerging and extending some distance beyond the mouth.