opercula

opercula

美 　英 [əʊ'pɜːkjʊlə]

• n.【植】果盖；藓盖；【动】螺的厣；(鱼的)鳃盖骨
• 网络囊盖

词形变化

复数：opercula  

英汉解释

n.	1. 【植】果盖;藓盖;【动】螺的厣;(鱼的)鳃盖骨;【虫】盖

英英解释

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.

雄鱼的臀鳍鳍条特长，交配季节两颌和鳃盖会长出黄色的珠星。