planula

英 ['plænjʊlə] 美 ['plænjələ]

• n. [动]浮浪幼体

英英释义

Noun:

1. the flat ciliated free-swimming larva of hydrozoan coelenterates

例句

用作名词 (n.)

1. In the adult, or medusa stage of a jellyfish, they can reproduce sexually by releasing sperm and eggs into the water, forming a planula.
   在海蜇成体或水母体阶段，它们通过将精子和卵于释放到水中形成浮浪幼体而进行有性繁殖。