I. pin ‧ ion 1 /ˈpɪnjən/ BrE AmE verb
[transitive always + adverb/preposition] to hold or tie someone’s arms or legs very tightly, so that they cannot move freely:
My arms were pinioned behind me by the policemen.
II. pinion 2 BrE AmE noun
[ Date: 1600-1700 ; Language: French ; Origin: pignon , from peigne 'comb' ]
[countable] a small wheel, with teeth on its outer edge, that fits into a larger wheel and turns it or is turned by it