- a gear with a small number of teeth, especially one engaging with a rack or larger gear.
- a shaft or spindle cut with teeth engaging with a gear.
Origin of pinion1
Related formspin·ion·less, adjectivepin·ion·like, adjective
Definition for pinion (2 of 2)
verb (used with object)
Origin of pinion2
Related formsun·pin·ioned, adjective
Examples from the Web for pinion
Dat he best know hisself; but if my 'pinion am axed, I should say, to wipe de fellah's nose wiv.Cudjo's Cave|J. T. Trowbridge
Atter dey spies him, dey axes im ter pass his pinion on de meetin.Bypaths in Dixie|Sarah Johnson Cocke
Even the pinion of the eagle fails in its rarified air, and the chamois ventures not to climb its steep and slippery crags.
In the blue-fronted Amazon parrot (Chrysotis æstiva)—a most variable bird—the normally red edge of the pinion is sometimes yellow.The Making of Species|Douglas Dewar
It stand dere 'bout fifteen minutes while I draws my best 'pinion of it.Slave Narratives: a Folk History of Slavery in the United States From Interviews with Former Slaves|Work Projects Administration