cephalization
英 [,sefəlaɪ'zeɪʃ(ə)n; ,kef-]美 [,sɛfəlɪ'zeʃən]
n. [动] 头向集中，头部形成；头部集中化
英文词源
cephalization (n.)
1864, coined by U.S. zoologist James D. Dana (1813-1895) from Greek kephale "head" (see cephalo-) on model of specialization, etc.
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