citrulline
/ˈsɪtrəliːn/ /sɪˈtrʌlɪn/(also citrullin)
noun
Biochemistry. Now usually citrulline. An α-amino acid (originally isolated from watermelon, Citrullus vulgaris) found widely in living cells as an intermediate in the synthesis of arginine and in the conversion of ammonia to urea.
- Systematic name: 2-amino-5-(carbamoylamino)pentanoic acid; NH2CONH(CH2)3CHNH2COOH..
Origin
Late 19th century (in an earlier sense). From scientific Latin Citrullus + -ine, perhaps originally after German Citrullin, †Citrullinum.
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