amentian.
英 eɪ'menʃə; ə- | 美
中文n. [医] 智力缺陷；白痴
词根词源
amentia (n.)"mental deficiency," late 14c., from Latin amentia "madness," from amentem "mad," from a- "away from" + mentem "mind" (see mind (n.)) + abstract noun ending -ia.
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