1. Having one valve only.

2. A mollusc whose shell is composed of a single piece.

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

• unvalue,
• univolved,
• invalve,
• ynivalve,
• hnivalve,
• jnivalve,
• inivalve,
• 8nivalve,
• 7nivalve,
• univalved,
• univalv,
• univlave,
• Univelved,
• Uniparae,
• epivalv,
• ungivance,
• univaler,
• Enihaloe,
• unevalved,
• univacalve

• unbalance,
• unveil,
• univalent,
• unbalanced,
• unfaltering,
• unvalued.

The adjective form of the word "univalve" is "univalved".

The plural of the "univalve" can be the "univalves".

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