cephalization

[ sef-uh-luh-zey-shuhn ]
/ 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.

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Origin of cephalization

First recorded in 1860–65; cephal- + -ization
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012