Meanings
noun5-hydroxytryptamine (uncountable)
Synonyms & antonyms
nounThe neurotransmitter serotonin.
Similar
More synonyms by meaning
nouna neurotransmitter involved in e.g. sleep and depression and memory
Similar
Broader
monoamine neurotransmitter
Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
It is a tryptamine with a hydroxyl group attached to the carbon atom that is numbered as 5.
Full word history & related roots →Translations
Finnish 5-hydroksitryptamiini
- 5-hydroksitryptamiiniserotonin
German 5-Hydroxytryptamin
- 5-Hydroxytryptaminserotonin
Cite this entry
APA
5-hydroxytryptamine. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/5-hydroxytryptamine
MLA
“5-hydroxytryptamine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/5-hydroxytryptamine. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “5-hydroxytryptamine,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/5-hydroxytryptamine.
Source: 5-hydroxytryptamine on Wiktionary, CC BY-SA 4.0.