Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
An amino acid, C6H14N2O2, in L- or D-forms.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
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.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Synonyms: mul:Lys, mul:K
Antonyms: none provided
noun
an essential amino acid found in proteins; occurs especially in gelatin and casein
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: essential amino acid
History
Etymology tree Proto-Indo-European *lewh1-der. Ancient Greek λύω (lúō) Proto-Indo-European *-tis Ancient Greek -τις (-tis) Ancient Greek -σις (-sis) Ancient Greek λῠ́σῐς (lŭ́sĭs)der. Latin lysisbor. English lysis Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ine English lysine From lysis + -ine, in reference to its tendency to participate in catalysis.
Across languages
32 source translations are retained for this English entry.
