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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Quinoa When cooked well, quinoa is a soft grain that provides protein, fiber, and amino acids that support tissue repair.
—
Lindsay Curtis, Health, 25 Oct. 2025
The waste is first reduced to simple compounds such as amino acids and sugars.
—Georgina Jedikovska, Interesting Engineering, 24 Oct. 2025
Despite its toxicity to life now, hydrogen cyanide in particular is one of the building blocks of amino acids, which are used to construct proteins, and nucleobases in RNA and DNA.
—Keith Cooper, Space.com, 21 Oct. 2025
The team is also investigating whether cysteine could stimulate hair follicle regeneration, with plans to further explore other amino acids that appear to influence stem cell regeneration.
—Deirdre Bardolf, FOXNews.com, 16 Oct. 2025
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Lindsay Curtis, Health, 25 Oct. 2025
The waste is first reduced to simple compounds such as amino acids and sugars.
—Georgina Jedikovska, Interesting Engineering, 24 Oct. 2025
Despite its toxicity to life now, hydrogen cyanide in particular is one of the building blocks of amino acids, which are used to construct proteins, and nucleobases in RNA and DNA.
—Keith Cooper, Space.com, 21 Oct. 2025
The team is also investigating whether cysteine could stimulate hair follicle regeneration, with plans to further explore other amino acids that appear to influence stem cell regeneration.
—Deirdre Bardolf, FOXNews.com, 16 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 29 Oct. 2025.
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