What does "lysine" mean?

An amino acid, C₆H₁₄N₂O₂, in L- or D-forms.

What is a synonym for "lysine"?

Common synonyms include: amino acid, lys, mul:k, mul:lys.

Lysine

//ˈlaɪsin// noun

noun ·Rare ·Advanced level

Definitions

Noun

1
An amino acid, C₆H₁₄N₂O₂, in L- or D-forms. countable, uncountable
2
an essential amino acid found in proteins; occurs especially in gelatin and casein wordnet
3
An amino acid, C₆H₁₄N₂O₂, in L- or D-forms.; The L-form of such a molecule, as it occurs in living organisms; in humans it is an essential amino acid. countable, uncountable
"Lysine is an essential amino acid required for many body functions, including growth and bone development in children; calcium absorption and maintenance of the correct nitrogen balance in the body; maintenance of lean body mass; production of antibodies, hormones, and enzymes; collagen formation and repair of tissue."

Synonyms

All synonyms

amino acid lys mul:k mul:lys

Example

More examples

"Lysine is an essential amino acid required for many body functions, including growth and bone development in children; calcium absorption and maintenance of the correct nitrogen balance in the body; maintenance of lean body mass; production of antibodies, hormones, and enzymes; collagen formation and repair of tissue."

Etymology

From lysis + -ine, in reference to its tendency to participate in catalysis.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.