lysine

noun

ly·sine ˈlī-ˌsēn

: a crystalline essential amino acid C₆H₁₄N₂O₂ obtained from the hydrolysis of various proteins

Examples of lysine in a Sentence

Recent Examples on the Web

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Other grains are low in one or more amino acids, most commonly lysine. — Merve Ceylan, Health, 21 Feb. 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 The approach relies on engineering cells to produce a glowing version of lysine. — Neetika Walter, Interesting Engineering, 24 Oct. 2025 The amino acids required for collagen synthesis, particularly glycine, proline, and lysine, are readily available from a wide range of foods including eggs, fish, poultry, dairy products, legumes, soy foods and meat. — Leeann Weintraub, Daily News, 5 Feb. 2026 See All Example Sentences for lysine

Word History

First Known Use

1892, in the meaning defined above

Time Traveler

The first known use of lysine was in 1892

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Browse Nearby Words

lysin

lysine

Lysippus

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Cite this Entry

Style

“Lysine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lysine. Accessed 7 Jul. 2026.

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Kids Definition

lysine

noun

ly·sine ˈlī-ˌsēn

: an essential amino acid obtained from various proteins

Medical Definition

lysine

noun

ly·sine ˈlī-ˌsēn

: a crystalline essential amino acid C₆H₁₄N₂O₂ obtained from the hydrolysis of various proteins

—abbreviation Lys

lysine

noun

Examples of lysine in a Sentence

Word History

Browse Nearby Words

Cite this Entry

Kids Definition

Medical Definition

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