1. A genus of freshwater bivalves or fresh-water clams.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• uniion,
• ynio,
• hnio,
• jnio,
• 8nio,
• 7nio,
• ubio,
• umio,
• ujio,
• uhio,
• unuo,
• uniio,
• uino,
• unyo,
• unioh,
• unioon,
• unno,
• uniou,
• unniho,
• uniouh

• unau,
• Una,
• unh,
• un.

The adjective form of the word "unio" is "unied".

The plural of the "unio" can be the "unios".

The singular of the "unio" can be the "unio".