a person exhibiting extreme symptoms of wild behaviour, especially when violent and dangerous
(尤指有狂暴与危险外在表现的)疯子,狂人
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a homicidal maniac .杀人狂。
[with adj. or noun modifier]
〈非正式〉 入迷于…的人,热衷于…的人
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a religious maniac .宗教迷。
【精神病学】 〈古〉 躁狂者,躁狂症患者。
"early 16th cent. (as an adjective): via late Latin from late Greek