opercule w języku angielskim

cap [caps]▼◼◼◼(protective cover or seal)
noun
[UK: kæp] [US: ˈkæp]

operculum [operculums]▼◼◼◼((zoology) covering flap in animals)
noun
[UK: ˈɒpəkjˌʊləm] [US: ˈɑːpɚkjˌʊləm]