planula

Latin , a little plane.

planula (plural planulae)

1. (biology) 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.
2. (zoology) The larva of a hydrozoan, which is free-swimming and covered in cilia.

• coeloplanula
• planular
• planulate
• planuliform
• planuloid

• IPA^(key): [ˈplanula]

planula

1. inflection of planout:
   1. feminine singular past active participle
   2. neuter plural past active participle