'Holocephala' definitions:

Definition of 'Holocephala'

From: GCIDE

Holocephali \Hol`o*ceph"a*li\, n. pl. [NL., from Gr. "o`los whole + kefalh` head.] (Zool.) An order of elasmobranch fishes, including, among living species, only the chim[ae]ras; -- called also Holocephala. See Chim[ae]ra; also Illustration in Appendix. [1913 Webster]