- An alkaloid, C9H11NO, that is present in fresh khat leaves and is a central nervous system stimulant. It is a controlled substance in the United States.
- Any of several synthetic derivatives of this alkaloid that are used as drugs for their stimulating properties.
Origin of cathinoneNew Latin Catha khat genus ( from Arabic qāt khat ; see khat . ) -in(e) 2 -one