hydroxytryptamine

noun
hy·droxy·tryp·ta·mine | \hī-ˌdräk-sē-ˈtrip-tə-ˌmēn \

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

Share 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

a generally accepted meaning of a word

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Dictionary Devil

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!