definition of
[quill]

[1] #1 quill n. [quill pen] pen made from a bird's feather. wn

[2] #2 quill n. a stiff hollow protective spine on a porcupine or hedgehog. wn

[3] #3 quill n. [flight feather, pinion, quill feather] any of the larger wing or tail feathers of a bird. wn

[4] #4 quill n. [calamus, shaft] the hollow spine of a feather. wn