operculum meaning in English

n.
(pl. -la ) 【植物；植物学】果盖；藓盖；【动物；动物学】螺的厣；(鱼的)鳃盖骨；【昆】盖。

Cells in the right parietal operculum operate as we act in response to other ' s gestures
当我们对他人的手势作出反应时，起作用的是我们右顶骨的细胞。
Gently hold the male on his back with one hand to expose his underside , and with the other hand , simultaneously squeeze his body in a direction from behind the operculum to the gonopodial area
轻轻的用一只手抓住公鱼并且让它肚皮朝上，同时用另一只手顺着一个方向从鱼鳃后部到肛门处挤压。