'Rhizocephala' definitions:

Definition of 'Rhizocephala'

From: GCIDE

Rhizocephala \Rhi`zo*ceph"a*la\, n. pl. [NL., fr. Gr. ??? root + ??? head.] (Zool.) A division of Pectostraca including saclike parasites of Crustacea. They adhere by rootlike extensions of the head. See Illusration in Appendix. [1913 Webster]