lactone

lac.tone

n.（名词）
An anhydride formed by the removal of a water molecule from the hydroxyl and carboxyl radicals of hydroxy acids.
内酯：一种通过从酸的羧基中除去一个水分子而形成的脱水物

来源：
lact(o)-
lact(o)-
-one
-one

【引伸】
lacton.ic