ˌsīfəˈzōə noun plural
Usage: capitalized
Etymology: New Latin, from scyph- + -zoa
: a class of Coelenterata comprising jellyfishes that have endodermal gastric tentacles, endodermal gonads which discharge their products into the digestive cavity, and usually tentaculocysts, that lack a true hydroid and have the asexual generation represented by a scyphistoma, and that usually lack a velum — see coronatae , cubomedusae , rhizostomae , semaeostomeae , stauromedusae
• scy·pho·zo·an |sīfə|zōən adjective or noun