The Collaborative International Dictionary
Anodon
Anodon \An"o*don\, n. [NL., fr. Gr. ? toothless; 'an priv. + ?, ?, a tooth.] (Zo["o]l.) A genus of fresh-water bivalves, having no teeth at the hinge. [Written also {Anodonta}.]
Wiktionary
anodon
n. (context zoology English) Any of the genus ''Anodon'', now ''Anodonta'', of freshwater bivalves.