[{"word":"planula","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"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.","synonyms":[],"antonyms":[]},{"definition":"The larva of a hydrozoan, which is free-swimming and covered in cilia.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/planula"]}]