1 (also quill feather) any of the main wing or tail feathers of a bird. the hollow shaft of a feather, especially the lower part or calamus that lacks barbs. (also quill pen) a pen made from a main wing or tail feather of a large bird by pointing and slitting the end of the shaft: he leant over his writing desk, quill in hand 2the hollow sharp spines of a porcupine, hedgehog, or other spiny mammal. 3
)another term for penne.a dish of pasta quills tossed in a spicy tomato sauce
) US informal
, dated pan pipes.
form (fabric) into small cylindrical folds.