n. A hallucinogenic alkaloid, C₁₂H₁₅N₂O·H₂PO₃, present in several species of Central American mushroom and producing effects similar to LSD.
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n. a hallucinogenic compound obtained from a mushroom
Word Usage
"Test for cyanotic bruising when dried - MOST mushrooms (not all!) which contain psilocybin will generally have a grey-blue bruising on the stalk and cap."