Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of the genus Unio of freshwater mussels.

from the GNU version of the Collaborative International Dictionary of English

  • n. Any one of numerous species of fresh-water mussels belonging to Unio and many allied genera.

from The Century Dictionary and Cyclopedia

  • n. The leading genus of bivalves of the family Unionidæ: formerly used with great latitude for many species, some of which are now placed in other families as well as in other genera.
  • n. [lowercase] A species of this genus; any river-mussel.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. type genus of the family Unionidae

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From the genus name.

Examples

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