hydroxytryptamine

noun
hy·​droxy·​tryp·​ta·​mine | \ hī-ˌdräk-sē-ˈtrip-tə-ˌmēn How to pronounce hydroxytryptamine (audio) \

Definition of hydroxytryptamine

: serotonin usually preceded by the numeral 55-hydroxytryptamine

First Known Use of hydroxytryptamine

1949, in the meaning defined above

Keep scrolling for more

Learn More about hydroxytryptamine

Time Traveler for hydroxytryptamine

Time Traveler

The first known use of hydroxytryptamine was in 1949

See more words from the same year

Statistics for hydroxytryptamine

Cite this Entry

“Hydroxytryptamine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydroxytryptamine. Accessed 29 Oct. 2020.

More from Merriam-Webster on hydroxytryptamine

Britannica.com: Encyclopedia article about hydroxytryptamine

Comments on hydroxytryptamine

What made you want to look up hydroxytryptamine? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Here Be Dragons: A Creature Identification Quiz

  • monster werewolf photo
  • Which is a synonym of werewolf?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!