What is Spur?

Spur definition and meaning on Dictionary terms:
a U-shaped device that slips over and straps to the heel of a boot and has a blunt, pointed, or roweled projection at the back for use by a mounted rider to urge a horse forward.
anything that goads, impels, or urges, as to action, speed, or achievement.

climbing iron.
Ornithology. a stiff, usually sharp, horny process on the leg of various birds, especially the domestic rooster, or on the bend of the wing, as in jacanas and screamers.
Pathology. a bony projection or exostosis.
a sharp piercing or cutting instrument fastened to the leg of a gamecock in cockfighting; gaff.
Physical Geography. a ridge or line of elevation projecting from or subordinate to the main body of a mountain or mountain range.
something that projects and resembles or suggests a gaff; sharp projection.
a short or stunted branch or shoot, as of a tree.
Typography. a short, seriflike projection from the bottom of the short vertical stroke in the capital G in some fonts.
wing dam.
Botany. a slender, usually hollow, projection from some part of a flower, as from the calyx of the larkspur or the corolla of the violet.Also called spur shoot.a short shoot bearing flowers, as in fruit trees.

Architecture. a short wooden brace, usually temporary, for strengthening a post or some other part.any offset from a wall, as a buttress.griffe2.

Ceramics. a triangular support of refractory clay for an object being fired.
Railroads. spur track.

verb (used with object), spurred, spur