The Collaborative International Dictionary
Cephalomere
Cephalomere \Ceph"a*lo*mere\, n. [Cephalo- + -mere.] (Zo["o]l.)
One of the somites (arthromeres) which make up the head of
arthropods.
--Packard.
Wiktionary
cephalomere
n. (context zoology English) One of the somites (arthromeres) which make up the head of arthropods.