threonine

noun
thre·​o·​nine | \ ˈthrē-ə-ˌnēn How to pronounce threonine (audio) \

Definition of threonine

: a colorless crystalline essential amino acid C4H9NO3

First Known Use of threonine

1936, in the meaning defined above

History and Etymology for threonine

probably from threonic acid (C4H8O5)

Keep scrolling for more

Learn More about threonine

Dictionary Entries near threonine

threnos

threo-

threonic acid

threonine

threpe

threptic

thresh

Statistics for threonine

Look-up Popularity

Time Traveler for threonine

The first known use of threonine was in 1936

See more words from the same year

Keep scrolling for more

More Definitions for threonine

threonine

noun
thre·​o·​nine | \ ˈthrē-ə-ˌnēn How to pronounce threonine (audio) \

Medical Definition of threonine

: a colorless crystalline essential amino acid C4H9NO3 that is found in various proteins abbreviation Thr

More from Merriam-Webster on threonine

Britannica.com: Encyclopedia article about threonine

Comments on threonine

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

WORD OF THE DAY

showing great care, attention, and effort

Get Word of the Day daily email!

Test Your Vocabulary

Finance Words Quiz

  • a-piggy-bank
  • The etymology of mortgage is related most closely to which two words?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

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!