capsaicin
/kæpˈseɪɪsɪn/noun
mass noun
1- Chemistry a compound that is responsible for the pungency of capsicums【化】辣椒辣素。
1.1
- A cyclic amide; chem. formula: C18H27NO3.环酰胺; 化学分子式： C18H27NO3.
词源
late 19th cent.: alteration of capsicine, the name of a substance formerly thought to have the same property.