Definitions

1. noun

A naturally occurring alkaloid in the peyote cactus, used as a psychedelic drug.

“The researcher studied the effects of mescaline on the human brain.”

2. noun

A psychedelic alkaloid, especially one obtained from the peyote cactus.

“The mescaline in the cactus has been used in traditional medicine for centuries.”

3. noun

A hallucinogenic drug derived from the peyote cactus.

“The user reported vivid hallucinations after taking the mescaline.”