pinion(redirected from pinioning)
Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.
1. Chiefly poetic a bird's wing
2. the part of a bird's wing including the flight feathers
a cogwheel that engages with a larger wheel or rack, which it drives or by which it is driven
The smaller of a pair of gear wheels or the smallest wheel of a gear train.
The distal portion of a bird's wing.