\Row"el\, n. [OF. roele, rouele, properly, a little wheel,
F. rouelle collop, slice, LL. rotella a little wheel, dim. of
L. rota a wheel. See {Roll}, and cf. {Rota}.]
1. The little wheel of a spur, with sharp points.
         With sounding whip, and rowels dyed in blood.
                                               --Cowper.
2. A little flat ring or wheel on horses' bits.
         The iron rowels into frothy foam he bit. --Spenser.
3. (Far.) A roll of hair, silk, etc., passed through the
   flesh of horses, answering to a seton in human surgery.

\Row"el\, v. t. [imp. & p. p. {Roweled}or {Rowelled}; p.
pr. & vb. n. {Roweling} or {Rowelling}.] (Far.)
To insert a rowel, or roll of hair or silk, into (as the
flesh of a horse). --Mortimer.