Larvacea Syllabification: (Lar·va·ce·a)Pronunciation: /lärˈvāSHēə/ ZoologyDefinition of Larvacea a class of minute transparent planktonic animals related to the sea squirts. They have a body that is typically enclosed in a gelatinous “house” that is regularly shed and replaced. Derivatives larvacean adjective & noun Origin:modern Latin (plural), from larvaLarvacea in other Oxford dictionaries Definition of Larvacea in the British & World English dictionary