Cephalata
Pronunciation : Ceph`a*la"ta
Part of Speech : n.
Etymology : [NL., fr. Gr. (Zo?l.)
Definition : Defn: A large division of Mollusca, including all except the bivalves; -- so called because the head is distinctly developed. See Illustration in Appendix.
pl.
Source : Webster's Unabridged Dictionary, 1913