Operculum

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

The operculum is a series of bones found in osteichthyes and chimaeras that serves as a facial support structure and a protective covering for the gills; it is also used for respiration and feeding.

Excerpt from the Wikipedia article “Operculum (fish)”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Lamiot, Public domain, via Wikimedia Commons.