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 5 5-hydroxytryptamine

First Known Use of hydroxytryptamine

1949, in the meaning defined above

Keep scrolling for more

Learn More about hydroxytryptamine

Statistics for hydroxytryptamine

Look-up Popularity

Time Traveler for hydroxytryptamine

The first known use of hydroxytryptamine was in 1949

See more words from the same year

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

recurring in steady succession

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Bee Cubed

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!