脂肪
zhīfáng · HSK 7
fat
🧈🥓 脂 + 肪 both mean fat and both carry 月 the flesh/meat radical
脂肪 doubles two fat words: 脂 (animal fat, grease) plus 肪 (body fat). The shared 月 component is the flesh radical, marking words tied to the body, so both halves literally flag fatty tissue.