'Scyphistomata' definitions:

Definition of 'Scyphistomata'

From: GCIDE

Scyphistoma \Scy*phis"to*ma\, n.; pl. Scyphistomata, Scyphistomae. [NL., fr. Gr. sky`fos a cup + sto`ma the mouth.] (Zool.) The young attached larva of Discophora in the stage when it resembles a hydroid, or actinian. [1913 Webster]