- (n.) A cogwheel with a small number of teeth or leaves, adapted to engage with a larger wheel or rack (see Rack); especially, such a wheel having its leaves formed of the substance of the arbor or spindle which is its axis.
- (v.t.) To disable by cutting off the pinion joint.
- (n.) A wing, literal or figurative.
- (n.) The joint of bird's wing most remote from the body.
- (n.) A fetter for the arm.
- (n.) A feather; a quill.
- (n.) A moth of the genus Lithophane, as L. antennata, whose larva bores large holes in young peaches and apples.
- (v.t.) Hence, generally, to confine; to bind; to tie up.
- (v.t.) To bind or confine the wings of; to confine by binding the wings.
- (v.t.) To disable or restrain, as a person, by binding the arms, especially by binding the arms to the body.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). pinion. Retrieved September 22, 2026, from http://smartdefine.org/pinion/definitions/2045690 |
| Chicago | Webster's. 2011. "pinion" http://smartdefine.org/pinion/definitions/2045690 (accessed September 22, 2026). |
| Harvard | Webster's 2011, pinion, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/pinion/definitions/2045690>. |
| MLA | Webster's. "pinion" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/pinion/definitions/2045690> |