inequivalve

[ in-ee-kwuh-valv ]

adjective

1. (of a bivalve mollusk) having the valves of the shell unequal in shape and size.

Word History and Origins

Origin of inequivalve¹

First recorded in 1770–80; in- ³ + equi- + valve

Example Sentences

A fossil imperfectly described as differing from Pinna, in being inequivalve.

From Project Gutenberg

In the former, all the shells are inequivalve; in the latter equivalve.

From Project Gutenberg

A bivalve is said to be equivalve when the two shells composing it are of the same size, inequivalve when they are not.

From Project Gutenberg

Asymmetrical, inequivalve, fixed, with extensive pallial sutures; no siphons.

From Project Gutenberg