1. (

• pinion

) a gear with a small number of teeth designed to mesh with a larger wheel or rack ;

2. (

• flight_feather ,
• pinion ,
• quill ,
• quill_feather

) any of the larger wing or tail feathers of a bird ;

3. (

• pennon ,
• pinion ,

) wing of a bird ;

1. (

• pinion ,
• shackle ,

) bind the arms of ;

2. (

• pinion

) cut the wings off (of birds) ;