The small spiked wheel on the end of a spur.
A little flat ring or wheel on a horse's bit.
A roll of hair, silk, etc., passed through the flesh of a horse in the manner of a seton in human surgery.
To use a rowel on (something), especially to drain fluid.
To fit with spurs.
To apply the spur to.
to spur a horse
To incite; to goad.