Rowel

·noun A little flat ring or wheel on horses' bits.

II. Rowel ·noun The little wheel of a spur, with sharp points.

III. Rowel ·vt To insert a rowel, or roll of hair or silk, into (as the flesh of a horse).

IV. Rowel ·noun A roll of hair, silk, ·etc., passed through the flesh of horses, answering to a seton in human surgery.