opercula

opercula

美 　英 [??'p??kj?l?]

• n.【植】果蓋；蘚蓋；【動】螺的厴；(魚的)鰓蓋骨
• 網絡囊蓋

詞形變化

復數：opercula  

英漢解釋

n.	1. 【植】果蓋;蘚蓋;【動】螺的厴;(魚的)鰓蓋骨;【蟲】蓋

英英解釋

n.

1. the plug of mucus that fills the opening of a woman's cervix while she is pregnant. 2. the flexible bony flap covering the gills of bony fishes 3. a flap covering an aperture in the spore capsules of mosses and some fungi 4. a rounded plate that seals the mouth of the shell of some gastropod mollusks when the animal's body is inside

例句

The male shows elongated rays in its anal fin and yellow pearl organs on the jaws and opercula during breeding season.

雄魚的臀鰭鰭條特長，交配季節兩頜和鰓蓋會長出黃色的珠星。