1. having valves or shells that are unequal in size or shape
Usage: biology; malacology

Examples

• The scallop is an inequivalved bivalve with one shell larger than the other.
• Many oysters are inequivalved, with their lower valve being deeper than the upper one.
• The fossil showed clear evidence of being an inequivalved mollusk.
• Inequivalved shells are common among certain marine bivalves.
• The researcher studied the inequivalved characteristics of the ancient clam species.