Definition of LSD in English:

LSD

Syllabification: LSD

noun

A synthetic crystalline compound, lysergic acid diethylamide, that is a potent hallucinogenic drug.
  • Chemical formula: C20H26N2O

Origin

mid 20th century: abbreviation.

Definition of LSD in:

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Pronunciation: ˌantɪˈbɛləm
adjective
occurring or existing before a particular war…