Search Result for "unio": 
Wordnet 3.0

NOUN (1)

1. type genus of the family Unionidae;
[syn: Unio, genus Unio]

The Collaborative International Dictionary of English v.0.48:

Unio \U"ni*o\, n. [NL., fr. L. unio unity, union, a single large pearl. See Union.] (Zool.) Any one of numerous species of fresh-water mussels belonging to Unio and many allied genera. [1913 Webster]
WordNet (r) 3.0 (2006):

Unio n 1: type genus of the family Unionidae [syn: Unio, genus Unio]