Associations to the word «Planula»

Wiktionary

PLANULA, noun. (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.
PLANULA, noun. (zoology) The larva of a hydrozoan, which is free-swimming and covered in cilia.

Dictionary definition

PLANULA, noun. The flat ciliated free-swimming larva of hydrozoan coelenterates.

Wise words

Every day we should hear at least one little song, read one good poem, see one exquisite picture, and, if possible, speak a few sensible words.
Johann Wolfgang Von Goethe