noun
- plural of trivalve; mollusks having shells composed of three valves or parts
Usage: zoological
Examples
- The marine biologist studied various trivalves found in the tidal pools.
- Trivalves are less common than bivalves in most coastal ecosystems.
- The fossil record shows several extinct species of trivalves.
- Students examined the three-part shell structure characteristic of trivalves.
- The collection included both bivalves and trivalves from the Mesozoic era.