0 to hold someone, especially by the arms, to prevent them from moving:
He was pinioned to the wall by two men while another one repeatedly punched him.
1 a small wheel with teeth-like parts around its edge that fit against similar parts on a larger wheel or a rack (= bar with teeth-like parts):
a rack-and-pinion assembly
2 to hold or tie someone by the arms to prevent the person from moving:
He was pinioned to the wall by the two men.
