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opercle

American

[oh-per-kuhl] / ˈoʊ pər kəl /

noun

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

Etymology

Origin of opercle

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.