LSD Definition

ĕlĕs-dē
noun
A crystalline compound, C15H15N2CON(C2H5)2, an amide of lysergic acid, used in the study of schizophrenia and other mental disorders and as a psychedelic drug: it produces hallucinations, delusions, etc. resembling those occurring in a psychotic state.
Webster's New World

LSD (lysergic acid diethylamide).

Wiktionary
Synonyms:
abbreviation
Least significant digit.
American Heritage

Origin of LSD

  • l(y)s(ergic acid) d(iethylamide)

    From American Heritage Dictionary of the English Language, 5th Edition

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