cephalization
noun
ceph·a·li·za·tion
ˌse-fə-lə-ˈzā-shən 
: a tendency in the evolution of organisms to concentrate the sensory and neural organs in an anterior head
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“Cephalization.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cephalization. Accessed 29 Oct. 2025.
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cephalization
noun
ceph·a·li·za·tion
variants
or British cephalisation
: an evolutionary tendency to specialization of the body with concentration of sensory and neural organs in an anterior head
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