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opercle

[ oh-per-kuhl ]

noun

  1. an operculum, especially the posterior bone of the operculum of a fish.


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Word History and Origins

Origin of opercle1

First recorded in 1590–1600, opercle is from the Latin word operculum cover. See operculum, -cle 2
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Example Sentences

In Erpetoichthys only the opercle is distinct among the gill-covers.

The tip of its opercle is prolonged like an ear and jet black in color, with a dash of bright scarlet along its lower edge.

Overlying these is the system of membrane bones already mentioned, including the opercle or gill-cover.

On our sunfish we see that the opercle ends behind in a long and narrow flap, which looks like an ear.

The largest uppermost flat bone of the gill-covers is known as the opercle .

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