opercular

adjective
oper·cu·lar | \ō-ˈpər-kyə-lər \

Definition of opercular 

(Entry 1 of 2)

: of, relating to, or constituting an operculum

opercular

noun

Definition of opercular (Entry 2 of 2)

: an opercular part (such as a bone or scale)

First Known Use of opercular

Adjective

1830, in the meaning defined above

Noun

1841, in the meaning defined above

History and Etymology for opercular

Adjective

borrowed from New Latin operculāris, from operculum operculum + Latin -āris -ar

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The first known use of opercular was in 1830

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