Definition from Wiktionary, the free dictionary
rowel (plural rowels)
- The small spiked wheel on the end of a spur.
- 1819, The deep and sharp rowels with which Ivanhoe’s heels were now armed, began to make the worthy Prior repent of his courtesy — Walter Scott, Ivanhoe
- 1936, The dry desert of my native land, her men grey and gaunt, their spines twisted, their feet shod with rowel and spur. — Henry Miller, Black Spring
- 1973, The Lone Ranger will storm in at the head of a posse, rowels tearing blood from the stallion’s white hide, to find his young friend, innocent Dan, swinging from a tree limb by a broken neck. — Thomas Pynchon, Gravity's Rainbow
- 1992, He nodded at the Americans. Buena suerte, he said. He put the long rowels of his spurs to the horse and they moved on. — Cormac McCarthy, All the Pretty Horses
- A little flat ring or wheel on a horse's bit.
- The iron rowels into frothy foam he bit.
- A roll of hair, silk, etc., passed through the flesh of a horse in the manner of a seton in human surgery.
- (transitive) To use a rowel on something, especially to drain fluid.