English Pronunciation zÅ'ÄÅ plural zÅ'ÄÄ Etymology < New Latin zoea < Greek zÅÄ life Noun zoaea or zoea plural zoeae<br> #a larval stage of development in crustaceans, especially decapods such as crabs, characterized by spines on the carapace and rudimentary thoracic and abdominal limbs.