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cephalization

The definition of cephalization means the trend in evolution for the nervous system and the sensory organs to be positioned near the human or animal head.

(noun)

An example of cephalization is the tendency for an animal's ears to be on its head.

See cephalization in Webster's New World College Dictionary

noun

the tendency in the evolution of animal life for sensory organs, the nervous system, etc. to become centralized in or near the head

Origin: cephal(o)- + -ization

See cephalization in American Heritage Dictionary 4

noun

An evolutionary trend in the animal kingdom toward centralization of neural and sensory organs in the head or anterior region of the body.

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