ceph·a·li·za·tion (s f  -l -z  shn)n. An evolutionary trend in the animal kingdom toward centralization of neural and sensory organs in the head or anterior region of the body. |
cephalization, cephalisation [ˌsɛfəlaɪˈzeɪʃən]
n
(Life Sciences & Allied Applications / Zoology) (in the evolution of animals) development of a head by the concentration of feeding and sensory organs and nervous tissue at the anterior end
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