名詞 citrulline:

1. an amino acid that does not occur in proteins but is an intermediate in the conversion of ornithine to arginine

cit.rul.line

n.（名詞）
An amino acid, C'H 3N 3O 3, originally isolated from watermelon, that is produced as an intermediate in the conversion of ornithine to arginine during urea formation in the liver.
瓜氨酸：一種氨基酸，C'H 3N 3O 3，最初從西瓜中分離出來，在肝部的尿素形成過程中，其作為中介物將鳥氨酸轉(zhuǎn)為精氨酸

來源：
New Latin Citrullus [watermelon genus] from Medieval Latin citrullus [watermelon] from Italian dialectal citrulo from Late Latin citrium from Latin citrus [citron]
現(xiàn)代拉丁語 Citrullus [西瓜屬] 源自 中世紀(jì)拉丁語 citrullus [西瓜] 源自 意大利方言 citrulo 源自 后期拉丁語 citrium 源自 拉丁語 citrus [香櫞]
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