scyphozoan

noun

scy·​pho·​zo·​an ˌsī-fə-ˈzō-ən 

: any of a class (Scyphozoa) of cnidarians (such as the sea nettle) that possess a large, conspicuous, sexually-reproducing medusa typically lacking a velum and a very small, usually funnel-shaped, asexually-reproducing polyp

scyphozoan adjective

Word History

Etymology

New Latin Scyphozoa, from Latin scyphus + New Latin -zoa

First Known Use

circa 1909, in the meaning defined above