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valine

American  
[val-een, -in, vey-leen, -lin] / ˈvæl in, -ɪn, ˈveɪ lin, -lɪn /

noun

Biochemistry.
  1. an essential amino acid, (CH3 ) 2 CHCH(NH2 )COOH, white, crystalline, and water-soluble, present in most plant and animal proteins, required for growth. Val; V


valine British  
/ ˈvæl-, ˈveɪliːn /

noun

  1. an essential amino acid; a component of proteins

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

valine Scientific  
/ vălēn′ /
  1. An essential amino acid. Chemical formula: C 5 H 11 NO 2 .

  2. See more at amino acid


Etymology

Origin of valine

First recorded in 1910–15; val(eric) + -ine 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Methionine, isoleucine, and valine appear to play especially important roles.

From Science Daily Aug. 2, 2026

On these lines, they conducted a series of experiments by replacing phenylalanine and valine amino acid residues at specific positions in the structure of Ado, with various other amino acids.

From Science Daily May 16, 2024

For example, valine is known by the letter V or the three-letter symbol val.

From Textbooks Jun. 9, 2022

Amino acids such as valine, methionine, and alanine are nonpolar or hydrophobic in nature, while amino acids such as serine, threonine, and cysteine are polar and have hydrophilic side chains.

From Textbooks Jun. 9, 2022

This resulted in the substitution of one amino acid for another: glutamate was switched to valine.

From "The Gene" by Siddhartha Mukherjee

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