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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Without carbs, on the other hand, those amino acids won’t reach your muscles as speedily.
—
Caroline Tien, SELF, 9 Apr. 2026
Illustration by Sophi Miyoko Gullbrants Peptides, scientifically speaking, are short chains of amino acids in your body that often act as signalling molecules.
—Hannah Jocelyn, New Yorker, 8 Apr. 2026
In addition to melatonin, some foods contain tryptophan, an amino acid that can be converted into melatonin in the body, research shows.
—The Washington Post, San Diego Union-Tribune, 7 Apr. 2026
What Makes the Glycinate Form Different Magnesium glycinate is chelated to the amino acid glycine, which improves how efficiently it’s absorbed through the intestinal wall.
—Allison Palmer, Miami Herald, 6 Apr. 2026
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Caroline Tien, SELF, 9 Apr. 2026
Illustration by Sophi Miyoko Gullbrants Peptides, scientifically speaking, are short chains of amino acids in your body that often act as signalling molecules.
—Hannah Jocelyn, New Yorker, 8 Apr. 2026
In addition to melatonin, some foods contain tryptophan, an amino acid that can be converted into melatonin in the body, research shows.
—The Washington Post, San Diego Union-Tribune, 7 Apr. 2026
What Makes the Glycinate Form Different Magnesium glycinate is chelated to the amino acid glycine, which improves how efficiently it’s absorbed through the intestinal wall.
—Allison Palmer, Miami Herald, 6 Apr. 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 17 Apr. 2026.
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