planula
pla·nula
noun
1.
the flat ciliated free-swimming larva of hydrozoan coelenterates
Origin
Borrowed from Latin plānula, diminutive of plāna (“plane”).
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.