A very large bivalve mollusc that occurs in the tropical Indo-Pacific.
大砗蛤，巨蛤
Family Tridacnidae: several species, including Tridacna gigas, which is the largest living shelled mollusc
Example sentencesExamples
The red-plumed tubeworms and giant clams were nowhere to be seen.
Whales, sea turtles, crocodiles, giant clams, manta rays, and dugongs also ply the peninsula's waters.
We found many beautiful hard corals and a fair number of soft corals and colorful giant clams.
The photograph below actually depicts a giant clam, Tridacna, from the south Pacific, but notice the pink encrusting material on the outsides of the shell.
Here giant clams gape widely, waiting for a meal.
Definition of giant clam in US English:
giant clam
noun
A very large bivalve mollusk that occurs in the tropical Indo-Pacific.
大砗蛤，巨蛤
Family Tridacnidae: several species, including Tridacna gigas, which is the largest living shelled mollusk
Example sentencesExamples
Whales, sea turtles, crocodiles, giant clams, manta rays, and dugongs also ply the peninsula's waters.
Here giant clams gape widely, waiting for a meal.
The photograph below actually depicts a giant clam, Tridacna, from the south Pacific, but notice the pink encrusting material on the outsides of the shell.
The red-plumed tubeworms and giant clams were nowhere to be seen.
We found many beautiful hard corals and a fair number of soft corals and colorful giant clams.