1. A genus of bivalve molluscs, including the clam, with a beautiful shell, and one species so large as to be used for fountains and holy-water vases.

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

• rridacna,
• fridacna,
• gridacna,
• yridacna,
• 6ridacna,
• 5ridacna,
• teidacna,
• tdidacna,
• tfidacna,
• ttidacna,
• t5idacna,
• t4idacna,
• tridadna,
• tridaca,
• tridacnna,
• tritacna,
• tridecna,
• tridancna,
• tritancna,
• trideca

• tridacnidae,
• traduce,
• tradecraft,
• traducer.

The adjective form of the word "tridacna" is "tridacnid".

The plural of the "tridacna" can be the "tridacnas".

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