The Collaborative International Dictionary
Cephalous
Cephalous \Ceph"a*lous\, a. [Gr. kefalh` head.] (Zo["o]l.) Having a head; -- applied chiefly to the Cephalata, a division of mollusks.
Wiktionary
cephalous
a. (context zoology English) Having a head; applied chiefly to the Cephalata, a division of mollusks.