Definition of planula in English:
noun (plural planulae-ˌlē)Zoology
A free-swimming coelenterate larva with a flattened, ciliated, solid body.
- Fertilized eggs may be brooded for a time or may develop directly into a free-swimming, ciliated planula larva.
- The planula larva settles on a hermit crab shell and metamorphoses into a primary polyp.
- The planula larva has very few apoptotic cells.
Definition of planula in:
- British & World English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.