Last Updated：2025/11/20

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(zoology) A covering flap in animals, such as a gill cover. / (botany) The lidlike portion of a moss sporangium or of a fruit that detaches to allow the dispersal of spores or seeds.

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operculum

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Source Word

operculum

IPA(Pronunciation)

/əʊˈpɜː.kjʊ.ləm/

Noun

(zoology) A covering flap in animals, such as a gill cover. / (botany) The lidlike portion of a moss sporangium or of a fruit that detaches to allow the dispersal of spores or seeds.

Japanese Meaning

動物学: 鰓やその他の器官の覆い、例えば鰓を覆う蓋（鰓蓋）としての構造物。 / 植物学: 苔類の胞子嚢の蓋状部分、または果実の一部で、胞子や種の散布のために離れる蓋のような部分。