amino acid
noun
: an amphoteric organic acid containing the amino group NH2
especially
: any of the various amino acids having the amino group in the alpha position that are the chief components of proteins and are synthesized by living cells or are obtained as essential components of the diet
Examples of amino acid in a Sentence
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In addition, dietary tryptophan – an amino acid found in foods such as poultry, eggs, tofu and seeds – is metabolized into compounds that activate the aryl hydrocarbon receptor, further boosting Treg cell activity and protecting against gut inflammation.
—
Mitzi Nagarkatti, The Conversation, 10 Oct. 2025
Some amino acids are very close in structure to glucose and can be easily converted to glucose in the liver.
—Bryant Stamford, Louisville Courier Journal, 9 Oct. 2025
Infused with vitamin B12, vitamin C, magnesium and amino acids, this preservative-free formula is gentle on sensitive eyes and helps keep them comfortable and protected.
—Adam Mills, MSNBC Newsweek, 8 Oct. 2025
This amino acid is thought to support relaxation and brain health.
—Team Verywell Health, Verywell Health, 6 Oct. 2025
See All Example Sentences for amino acid
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Mitzi Nagarkatti, The Conversation, 10 Oct. 2025
Some amino acids are very close in structure to glucose and can be easily converted to glucose in the liver.
—Bryant Stamford, Louisville Courier Journal, 9 Oct. 2025
Infused with vitamin B12, vitamin C, magnesium and amino acids, this preservative-free formula is gentle on sensitive eyes and helps keep them comfortable and protected.
—Adam Mills, MSNBC Newsweek, 8 Oct. 2025
This amino acid is thought to support relaxation and brain health.
—Team Verywell Health, Verywell Health, 6 Oct. 2025
See All Example Sentences for amino acid
Cite this Entry
“Amino acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amino%20acid. Accessed 19 Oct. 2025.
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