va·​line | \ ˈva-ˌlēn How to pronounce valine (audio) , ˈvā- How to pronounce valine (audio) \

Definition of valine

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

Examples of valine in a Sentence

Recent Examples on the Web These essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenyalinine, threonine, tryptophan and valine. Alyssa Jung, Good Housekeeping, 5 Oct. 2021 Pineapples contain valine and leucine, two amino acids that are essential to human health. Katy Severson,, 26 Feb. 2021 At the 129th position in the chain, there are three possible combinations involving two different amino acids, methionine and valine. Mark Johnson, Milwaukee Journal Sentinel, 6 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'valine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of valine

1907, in the meaning defined above

History and Etymology for valine

borrowed from German Valin, from Valeriansäure valeric acid + -in -ine entry 2

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Last Updated

16 Oct 2021

Cite this Entry

“Valine.” Dictionary, Merriam-Webster, Accessed 6 Dec. 2021.

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More Definitions for valine


va·​line | \ ˈvā-ˌlēn How to pronounce valine (audio) , ˈva-ˌlēn How to pronounce valine (audio) \

Medical Definition of valine

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

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