operculum n : a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted [also: opercula (pl)]
Etymologyfrom Latin operire, to close
- a covering flap or lidlike structure in plants and animals
- A part of the brain
In biology, operculum (Latin for "little lid") has been used to describe several different anatomical features, in animals, in humans and even in plants. The following list gives some of the uses of the term:
- Operculum (gastropod), a lid on the shell of some gastropods.
- Operculum (bryozoa), a lid on the orifice of some bryozoans.
- Operculum (incense ingredient), made from the operculum of gastropods.
- Operculum (fish), a flap of the bony fish covering the gills.
- Operculum (botany), various lids and flaps pertaining to plants and fungi.
- Operculum (brain), a part of the (human) brain.
- Operculum (dentistry), A small flap of tissue covering the back molars
operculum in German: Operculum (Begriffsklärung)
operculum in Dutch: Operculum