noun

• A very large bivalve mollusc that occurs in the tropical Indo-Pacific.

  Family Tridacnidae: several species, including Tridacna gigas, which is the largest living shelled mollusc

  ‘The red-plumed tubeworms and giant clams were nowhere to be seen.’

  More example sentences

  • ‘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.’
  • ‘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.’
  • ‘Here giant clams gape widely, waiting for a meal.’