Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

valine

play
noun va·line \ˈva-ˌlēn, ˈvā-\

Definition of valine

  1. :  a crystalline essential amino acid C5H11NO2 that is one of the building blocks of plant and animal proteins



Origin of valine

International Scientific Vocabulary, from valeric (acid)


First Known Use: 1907


Medical Dictionary

valine

play play
noun va·line \ˈvā-ˌlēn, ˈva-ˌlēn\

Medical Definition of valine

  1. :  a crystalline essential amino acid C5H11NO2 that occurs especially in fibrous proteins—abbreviation Val




Learn More about valine

  1. Medical Dictionary: Definition of "valine" Britannica.com: Encyclopedia article about "valine"


Seen and Heard

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

WORD OF THE DAY

February 9, 2016

marked by high spirits and laughter

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

spindrift duvet pince-nez kittly-benders
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ