husk

中文： 外皮、壳、空壳、躯壳

1. The dry, leafy or stringy exterior of certain vegetables or fruits, which must be removed before eating the meat inside. · A coconut has a very thick husk.
2. Any form of useless, dried up, and subsequently worthless exterior of something. (figuratively) · His attorney was a dried-up husk of a man.
3. The supporting frame of a run of millstones.

复数 husks