Anodonta

from WordNet (r) 3.0 (2006)

Anodonta
    n 1: thin-shelled freshwater mussels [syn: {Anodonta}, {genus
         Anodonta}]

from The Collaborative International Dictionary of English v.0.48

Anodon \An"o*don\, n. [NL., fr. Gr. ? toothless; 'an priv. + ?,
   ?, a tooth.] (Zool.)
   A genus of fresh-water bivalves, having no teeth at the
   hinge. [Written also {{Anodonta}}.]
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Anodonta \Anodonta\ n.
   a genus of thin-shelled freshwater mussels.

   Syn: genus {Anodonta}.
        [WordNet 1.5]

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