al·​a·​nine | \ ˈa-lə-ˌnēn How to pronounce alanine (audio) \

Definition of alanine

: a simple nonessential crystalline amino acid C3H7NO2

Examples of alanine in a Sentence

Recent Examples on the Web Dry scooping involves eating a dry scoop of pre-workout powder, which is a supplement that blends amino acids, B vitamins, large doses of caffeine, creatine, and beta alanine. Erin Corbett,, 5 June 2021 There’s no technological reason why a researcher couldn’t have switched the codons for one amino acid, like tyrosine, into the codons for another one, like alanine. Ethan Siegel, Forbes, 20 May 2021 Crystals formed after heating an ethanol-and-water solution containing L-glutamine and beta-alanine. Andrea Gawrylewski, Scientific American, 15 Oct. 2020 The acetyl glycyl beta-alanine ingredient in the formula stood out to Jaliman, who says this peptide will probably help lighten the pigment of a scar while also working to even out skin tone. Maya Gandara,, 15 Apr. 2020 At the top of the list: a slightly elevated level of the liver enzyme alanine aminotransferase, or ALT. Melissa Healystaff Writer, Los Angeles Times, 7 Apr. 2020 Ladder’s Pre-Workout pack, for instance, includes beta-alanine, an amino acid that is supposed to help keep lactic acid from building up in your muscles. Sara Harrison, WIRED, 22 July 2019 Scientists have determined that beta-alanine is safe at a certain dosage for up to eight weeks. Sara Harrison, WIRED, 22 July 2019 This dog’s alanine transaminase level spiked to 8,777. Kim Campbell Thornton, sacbee, 14 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'alanine.' 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 alanine

1850, in the meaning defined above

History and Etymology for alanine

German Alanin, irregular from Aldehyd aldehyde

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Time Traveler for alanine

Time Traveler

The first known use of alanine was in 1850

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Statistics for alanine

Last Updated

14 Jun 2021

Cite this Entry

“Alanine.” Dictionary, Merriam-Webster, Accessed 24 Jun. 2021.

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More Definitions for alanine


al·​a·​nine | \ ˈal-ə-ˌnēn How to pronounce alanine (audio) \

Medical Definition of alanine

: a simple nonessential crystalline amino acid C3H7NO2 formed especially by the hydrolysis of proteins abbreviation Ala

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