noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A heterocyclic amine found in both plant and animal tissue, where it is an intermediate in several metabolic schemes. uncountable
2. 2
   Any of a class of neurotransmitters and psychedelic drugs derived from this compound. countable

Etymology

By surface analysis, tryptophan + amine.

Related phrases

5-hydroxytryptamine

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.