Definition, Meaning & Synonyms

cephalization

noun
/ˌsɛfəlaɪˈzeɪʃən/
Definition
Cephalization is the evolutionary trend in which the nervous system and sensory organs become concentrated at the anterior end (head) of an organism.
Examples
  • Cephalization is a key concept in understanding the evolution of more complex animals.
  • The degree of cephalization often correlates with an organism’s ability to process sensory information and respond to its environment.
  • In many species, cephalization is associated with greater mobility and more complex behaviors.
Meaning
The process by which a complex brain and sensory organs develop in the front region of an organism’s body, leading to a distinct head structure.
Synonyms
  • Head formation
  • Nervous system centralization
  • Cognitive development