leucine

English

Etymology

Etymology tree

Proto-Indo-European *lewk-

Proto-Indo-European *-ós

Proto-Indo-European *lewkós

Proto-Hellenic *leukós

Ancient Greek λευκός (leukós)

Proto-Indo-European *-nós

Proto-Indo-European *-iHnos

Proto-Italic *-īnos

Latin -īnusder.

Old French -inbor.

Middle English -in

English -ine

English leucine

Derived from Ancient Greek λευκός (leukós, “white”) + -ine, equivalent to leuco- +‎ -ine.

Pronunciation

• IPA^(key): /ˈluː.siːn/

• Audio (Southern England):

  (file)

• Rhymes: -uːsiːn

Noun

leucine (countable and uncountable, plural leucines)

1. (biochemistry) An essential amino acid, C₆H₁₃NO₂, isomeric with isoleucine, found in most animal proteins; it is essential for growth in children.
   • 2015 October 15, “Buffalo Cheese Whey Proteins, Identification of a 24 kDa Protein and Characterization of Their Hydrolysates: In Vitro Gastrointestinal Digestion”, in PLOS ONE‎^[1], →DOI:

     Thus, leucine is already being seen as a pharmaconutrient of great relevance for the supplementary feeding of malnourished and frail elderly and for specific subpopulations.

Synonyms

• Leu

Derived terms

• acetylleucine
• cycloleucine
• dileucine
• hydroxyleucine
• leucinal
• leucinemia
• leucine zipper
• leucinocaine
• leucinol
• monoleucine
• N-methylleucine
• norleucine
• polyleucine

Translations

essential amino acid; C₆H₁₃NO₂

• Bulgarian: левцин m (levcin)
• Catalan: leucina f
• Chinese:

  Mandarin: 亮氨酸 (zh) (liàng'ānsuān)

• Czech: leucin m
• Danish: leucin
• Esperanto: leŭcino
• Finnish: leusiini
• French: leucine (fr) f
• German: Leucin (de) n
• Greek: λευκίνη (el) f (lefkíni)
• Hungarian: leucin (hu)
• Ido: leucino (io)
• Italian: leucina (it) f
• Japanese: ロイシン (roishin)
• Persian: لوسین (lusin)
• Polish: leucyna (pl) f
• Portuguese: leucina f
• Romanian: leucină (ro) f
• Russian: лейци́н (ru) m (lejcín)
• Spanish: leucina (es) f
• Swedish: leucin (sv)

French

Noun

leucine f (plural leucines)

1. leucine

Further reading

• “leucine”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012

Italian

Noun

leucine f

1. plural of leucina

Anagrams

• enuclei