opercle

1.operculum Bony gill cover; comprised of four bones: opercle, preopercle, interopercle and subopercle.

骨；包含四个硬骨；骨、前骨，间骨下骨。

2.interopercle One of the bones comprising the operculum; bordered antero-dorsally by the preopercle and postero-dorsally by the opercle and subopercle.

中成的硬骨之一；毗邻背部前方藉由前骨后背面藉由。