ENCEPHALON Meaning of ENCEPHALON in English [ ɛn'sɛfəlɒn , -'kɛf- ]■ noun Anatomy the brain.OriginC18: from Gk enkephalon 'what is inside the head', from en- 'inside' + kephalē 'head'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004