scy·phis·to·ma /saɪˈfɪstəmə/ 螅狀幼體; 螅狀幼體
Scy·phis·to·ma n.; pl. Scyphistomata Scyphistomae Zool. The young attached larva of Discophora in the stage when it resembles a hydroid, or actinian. ◄ ►