LSD

noun Etymology: German Lysergsäure-Diäthylamid lysergic acid diethylamide Date: 1950 a semisynthetic illicit organic compound C 20 H 25 N 3 O 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