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The present disambiguation page holds the title of a primary topic, and an article needs to be written about it. It is believed to qualify as a broad-concept article. It may be written directly at this page or drafted elsewhere and then moved over here. Related titles should be described in Operculum, while unrelated titles should be moved to Operculum (disambiguation).
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An operculum is a small covering or lid, and is widely used in descriptions of animals and plants.
Operculum may refer to:
In human biology:
- Cervical mucus plug, the cervical mucus plug that blocks the cervix of the uterus after conception
- Operculum (brain), the part of the brain covering the insula
- Operculum (dentistry), a small flap of tissue which may cover an erupting or partially erupted molar
In animal biology:
- Operculum (animal), a structure resembling a lid or a small door that opens and closes
- Operculum (fish), a flap covering the gills of bony fish
- Operculum (gastropod), a sort of trapdoor used to close the aperture of some snails
- Operculum (bird), a structure which covers the nares of some birds
- Operculum (bryozoa), a lid on the orifice of some bryozoans
- Operculum, the anterior end of a fruit fly puparium, through which the adult fly emerges
- Operculum (botany), various lids and flaps pertaining to plants, algae and fungi
- Dehiscence (botany), the opening of a plant structure, such as a fruit, anther, or sporangium, to release its contents. This sometimes involves an operculum.
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