noun.
A hallucinogenic alkaloid, C11H17NO3, obtained from peyote buttons and used by certain Native American tribes in religious rituals and illicitly as a recreational drug.
The Century Dictionary and Cyclopedia
noun.
Methyl-3, 4, 5-trimethoxybenzylamine, (CH3O)3C6H2.CH2NHCH3, an alkaloid found in mescal-buttons. It crystallizes in needles which melt at 151° C.