operculate

adjective

oper·​cu·​late ō-ˈpər-kyə-lət 

variants or less commonly operculated

ō-ˈpər-kyə-ˌlā-təd 

: having an operculum

Word History

Etymology

borrowed from New Latin operculātus, going back to Latin, past participle of operculāre "to cover with a lid," derivative of operculum "cover, lid" — more at operculum

First Known Use

circa 1775, in the meaning defined above