noun
mescaline
MES-kuh-lin/ˈmeskəlɪn/
A hallucinogenic compound found in peyote and certain other cacti.
Peyote and certain other cacti naturally contain the hallucinogenic compound mescaline.

Etymology
Mescal here names the peyote cactus: the drug was named for its occurrence in the cactus's buttons. The chemical suffix marks it as a substance derived from that source.
In context
mescaline is a naturally occurring psychedelic that can cause hallucinations when ingested in peyote
More examples
- Researchers study how mescaline affects the brain.
- The laboratory tests the sample for mescaline.
- Mescaline can alter a person's sense of time.
Similar words
- hallucinogen
- Names the broader drug class rather than this specific compound.