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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To reinforce the spa’s work, the kitchen has designed a selection of nutrient-dense options, including anti-inflammatory salads and juices rich in polyphenols and amino acids.
—
Jaymi McCann, TheWeek, 4 June 2026
One of the HAMPs molecules is a peptide called inceptin, and there’s an 11-amino acid fragment of inceptin named In11, as well.
—Jacek Krywko, ArsTechnica, 3 June 2026
This piece of protein, a type of molecule called a peptide, was just 15 amino acids long.
—Sara Talpos — Undark, STAT, 1 June 2026
While quinoa is a complete protein, many grains are lower in lysine, an amino acid that is more abundant in legumes, dairy, eggs, and animal proteins.
—Lynn Andriani, Martha Stewart, 30 May 2026
See All Example Sentences for amino acid
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Jaymi McCann, TheWeek, 4 June 2026
One of the HAMPs molecules is a peptide called inceptin, and there’s an 11-amino acid fragment of inceptin named In11, as well.
—Jacek Krywko, ArsTechnica, 3 June 2026
This piece of protein, a type of molecule called a peptide, was just 15 amino acids long.
—Sara Talpos — Undark, STAT, 1 June 2026
While quinoa is a complete protein, many grains are lower in lysine, an amino acid that is more abundant in legumes, dairy, eggs, and animal proteins.
—Lynn Andriani, Martha Stewart, 30 May 2026
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 5 Jun. 2026.
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