- plural of amino acid.
amino acids
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Amino acids are the basic molecular building blocks of proteins.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Proteins break down into amino acids that help the body grow and repair.
From BBC ● Oct. 15, 2026
Both amino acids are common components of proteins, but they have different chemical properties and biological roles.
From Science Daily ● Oct. 8, 2026
Like hands, all amino acids exist as two mirrored variants, but only one of them is found in the proteins in the body's cells.
From Barron's ● Oct. 7, 2026
Recast Systems in San Francisco is experimenting with a type of protein made from amino acids found in the soil, says CEO Olivia Li.
From BBC ● Oct. 7, 2026
Beans have both lysine and tryptophan, but not the amino acids cysteine and methionine, which are provided by maize.
From "1491" by Charles C. Mann
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.