Definition of pinion :
1. A cogwheel with a small number of teeth, or leaves, adapted to engage with a larger wheel, or rack ( see Rack); esp., such a wheel having its leaves formed of the substance of the arbor or spindle which is its axis.
2. A feather; a quill.
3. A fetter for the arm.
4. A moth of the genus Lithophane, as L. antennata, whose larva bores large holes in young peaches and apples.
5. A wing, literal or figurative.
6. Hence, generally, to confine; to bind; to tie up.
7. The joint of bird's wing most remote from the body.
8. To bind or confine the wings of; to confine by binding the wings.
9. To disable by cutting off the pinion joint.
10. To disable or restrain, as a person, by binding the arms, esp. by binding the arms to the body.
prison (part of speech: noun)
handcuff, coop, collar, reform school, cooler, jailhouse, cage, jail, pen, penitentiary, oubliette, reformatory, harness, tether, irons, jug, brig, bridle, dungeon, pound, prison, fence, penal colony, stronghold, keep, vise, San Quentin, shackle, stockade, confine, lockup, straight jacket, pillory, manacle, Bastille, cell, gaol, Alcatraz
- He put down pinion and file, pushed back his chair, and rose to receive them. - "Warlock o' Glenwarlock", George MacDonald.
- And then you took the poor home- sick clerk under your pinion, your name opened a hundred doors for me and I grew up into manhood under your care! - "Honor: A Play in Four Acts", Hermann Sudermann.
- A vernier and telescope are made to slide on the scale by means of a rack and pinion. - "Barometer and Weather Guide", Robert Fitzroy.