LSD
noun
\ ˌel-(ˌ)es-ˈdē
\
\
Definition of LSD
: a semisynthetic illicit organic compound C20H25N3O derived from ergot that induces extreme sensory distortions, altered perceptions of reality, and intense emotional states, that may also produce delusions or paranoia, and that may sometimes cause panic reactions in response to the effects experienced
— called also lysergic acid diethylamide
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More Definitions for LSD
LSD
noun
English Language Learners Definition of LSD
: an illegal drug that causes people to see and hear things that do not really exist
See the full definition for LSD in the English Language Learners Dictionary
LSD
noun
\ ˌel-ˌes-ˈdē
\
\
Kids Definition of LSD
: a dangerous drug that causes hallucinations
LSD
noun
\ ˌel-ˌes-ˈdē
\
\
Medical Definition of LSD
: a semisynthetic illicit organic compound C20H25N3O derived from ergot that induces extreme sensory distortions, altered perceptions of reality, and intense emotional states, that may also produce delusions or paranoia, and that may sometimes cause panic reactions in response to the effects experienced
— called also acid, lysergic acid diethylamide, lysergide