: a crystalline essential amino acid C6H14N2O2 obtained from the hydrolysis of various proteins
Examples of lysine in a Sentence
Recent Examples on the Web
The protein in oats lacks the amino acid lysine, potentially affecting digestion.
—
Chelsea Rae Bourgeois, Rdn, Ld, Health, 14 Jan. 2025
All the members of the legume family are full of nutrients, including copper, iron, magnesium, potassium, folic acid, zinc, the essential amino acid lysine, and lots of protein and fiber.
—Sandee Lamotte, CNN, 12 Dec. 2024
To promote these reactions, alternative meat developers will add browning agents, including specific amino acids such as cysteine, methionine, and lysine, sugars, and the vitamin thiamin.
—Discover Magazine, 28 Nov. 2024
Willett says lysine is also in all whole plant foods such as wheat and beans.
—Daryl Austin, USA TODAY, 19 Nov. 2024
See All Example Sentences for lysine
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.
Chelsea Rae Bourgeois, Rdn, Ld, Health, 14 Jan. 2025
All the members of the legume family are full of nutrients, including copper, iron, magnesium, potassium, folic acid, zinc, the essential amino acid lysine, and lots of protein and fiber.
—Sandee Lamotte, CNN, 12 Dec. 2024
To promote these reactions, alternative meat developers will add browning agents, including specific amino acids such as cysteine, methionine, and lysine, sugars, and the vitamin thiamin.
—Discover Magazine, 28 Nov. 2024
Willett says lysine is also in all whole plant foods such as wheat and beans.
—Daryl Austin, USA TODAY, 19 Nov. 2024
See All Example Sentences for lysine
Cite this Entry
“Lysine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lysine. Accessed 4 Mar. 2025.
Copy CitationKids 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share