quill

n 1: a bird's feather made into a pen for writing [syn: {quill

pen}]

2: a stiff hollow protective spine on a porcupine or hedgehog

3: any of the larger wing or tail feathers of a bird [syn: {flight

feather}, {pinion}, {quill feather}]

4: the hollow shaft of a feather [syn: {calamus}, {shaft}]