Definition of LSD noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌel es ˈdiː//
; NAmE NAmE//ˌel es ˈdiː//
(slang acid) [uncountable] Addiction
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a powerful illegal drug that affects people’s minds and makes them see and hear things that are not really there See related entries: Addiction Word Origin1950s: abbreviation.
See the Oxford Advanced American Dictionary entry: LSD

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