名詞 methionine:

1. a crystalline amino acid containing sulfur; found in most proteins and essential for nutrition

me.thi.o.nine

n.（名詞）
A sulfur-containing essential amino acid, C5H NO 2S, obtained from various proteins or prepared synthetically and used as a dietary supplement and in pharmaceuticals.
蛋氨酸：一種含磷的主要的氨基酸，C5H NO 2S，由多種蛋白質(zhì)中獲取或用合成方法形成，用作一種飲食的補(bǔ)充，并用于藥劑學(xué)

來源：
me(th)-
me(th)-
thion-
thion-
-ine 2
-ine2