Word History



First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of 5-HT was in 1958

Dictionary Entries Near 5-HT

Cite this Entry

“5-HT.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/5-HT. Accessed 11 Dec. 2023.

Medical Definition

More from Merriam-Webster on 5-HT

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