planula

n. [动]浮浪幼体

发音

UK /ˈplæn.jʊ.lə/
US /ˈplæn.jə.lə/

词形变化

planulae 复数 planulae

释义与例句

n.
  1. 1.

    In embryonic development, a vesicle filled with fluid, formed from the morula by the divergence of its cells in such a manner as to give rise to a central space, around which the cells arrange themselves as an envelope; an embryonic form intermediate between the morula and gastrula.

    生物
  2. 2.

    The larva of a hydrozoan, which is free-swimming and covered in cilia.

    生物 动物学

词汇关系

名词

上位词 2

hydroid hydrozoan

词源

Borrowed from Latin plānula, diminutive of plāna (“plane”).

来源：wiktionary