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。
a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
An operculum is a small covering or lid, and is widely used in descriptions of the animal and plant world.
例句与用法
1.
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。
2.
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。
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