planula definition

  • noun:
    • The flat, free-swimming, ciliated larva of a coelenterate.
    • In embryonic development, a vesicle full of substance, formed from morula by the divergence of the cells in such a fashion concerning produce a central space, around which the cells arrange by themselves as an envelope; an embryonic type intermediate amongst the morula and gastrula.
    • The larva of a hydrozoan, that will be free-swimming and covered in cilia.
    • In embryonic development, a vesicle full of fluid, formed through the morula because of the divergence of their cells such a manner regarding produce a central space, around that your cells arrange on their own as an envelope; an embryonic kind intermediate amongst the morula and gastrula. Often utilized as synonymous with gastrula.
    • The very young, free-swimming larva of the c┼ôlenterates. It usually has a flattened oval or oblong form, and is entirely covered with cilia.
    • the standard locomotory embryo of c┼ôlenterates, that is of flattened kind, mouthless, ciliate, and free-swimming.
    • the level ciliated free-swimming larva of hydrozoan coelenterates

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  • Sentence for "planula"
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