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inequivalve

[in-ee-kwuh-valv]

adjective

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



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Word History and Origins

Origin of inequivalve1

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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Anatinidæ have thin, often inequivalve pearly shells.

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

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For instance, Professor Hutton describes a certain shell as "thick, irregular, sharp ribbed, with the margin dentated or lobed, very inequivalve; upper valve opercular, compressed, wrinkled, with thick concentric laminae; lower valve cucullated, purple, white within, edged with purple or black; lateral margins denticulated; hinge generally attenuated, produced, pointed."

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inequityineradicable