noun. A crystalline substance, C₁₀H₁₂N₂, that is formed in plant and animal tissues from tryptophan and is an intermediate in various metabolic processes.

noun. a heterocyclic amine found in both plant and animal tissue, where it is an intermediate in several metabolic schemes.

noun. Any of a class of neurotransmitters and psychedelic drugs derived from this compound.

"New drugs belonging to the phenethylamine, tryptamine and piperazine families were also identified."

acid.100  bioactive  cannabinoid  conium  costimulatory