1. Having two shells or valves, which open and shut.

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

• bivalvs,
• vivalvous,
• nivalvous,
• hivalvous,
• givalvous,
• buvalvous,
• bjvalvous,
• bkvalvous,
• bovalvous,
• b9valvous,
• b8valvous,
• bivalvus,
• bivalvos,
• Bivalvoes,
• bivalvees,
• Bivalveous,
• Bivalveus,
• Bivalvaus,
• Bivalvies,
• Bivalvaes