'Unio' definitions:

Definition of 'Unio'

(from WordNet)
noun
Type genus of the family Unionidae [syn: Unio, genus Unio]

Definition of 'Unio'

From: GCIDE
  • 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]

Words containing 'Unio'