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1. The wing of a bird.
2. The outer rear edge of the wing of a bird, containing the primary flight feathers.
3. A primary flight feather of a bird.
tr.v. pin·ioned, pin·ion·ing, pin·ions
a. To remove or bind the wing feathers of (a bird) to prevent flight.
b. To cut or bind (the wings of a bird).
a. To restrain or immobilize (a person) by binding the arms.
b. To bind (a person's arms).
3. To bind fast or hold down; shackle.
[Middle English, from Old French pignon, from Vulgar Latin *pinniō, pinniōn-, from Latin penna, pinna, feather; see pinna.]
A small cogwheel that engages or is engaged by a larger cogwheel or a rack.
[French pignon, from Old French peignon, probably from peigne, comb, from Latin pecten, from pectere, to comb.]