cephalization

[ sef-uh-luh-zey-shuh n ]
/ ˌsɛf ə ləˈzeɪ ʃən /

noun Zoology.

a tendency in the development of animals to localization of important organs or parts in or near the head.

Origin of cephalization

First recorded in 1860–65; cephal- + -ization

British Dictionary definitions for cephalization

cephalization

cephalisation

/ (ˌsɛfəlaɪˈzeɪʃən) /

noun

(in the evolution of animals) development of a head by the concentration of feeding and sensory organs and nervous tissue at the anterior end