fat body; corpus adiposum
Anatomical term for a mass of fatty tissue, especially in insects and amphibians. In human anatomy, it may refer to specific fat pads (e.g., 頬脂肪体).
The fat body of insects is involved in nutrient storage and metabolism.
The buccal fat pad affects facial contour.
Compound of 脂肪 (fat) and 体 (body), likely a calque from Western anatomical terminology.