quill

pen made from a bird's feather

a stiff hollow protective spine on a porcupine or hedgehog

any of the larger wing or tail feathers of a bird

the hollow spine of a feather

One of the large feathers of a bird's wing, or one of the rectrices of the tail; also, the stock of such a feather.

A roll of dried bark; as, a quill of cinnamon or of cinchona.