encephalo-youdaoicibaDictYouDict[encephalo- 词源字典]
before vowels encephal-, word-forming element meaning "brain, of the brain," from comb. form of medical Latin encephalon, from Greek enkephalos "the brain," literally "within the head," from en "in" (see en- (2)) + kephale "head;" see cephalo-.[encephalo- etymology, encephalo- origin, 英语词源]