Hypernym

noun

a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)

Part_meronym

noun

a sharp prod fixed to a rider's heel and used to urge a horse onward

rowel 1

noundomain: artefact

Princeton WordNet [ver.3.1]

English

Definition

a small spiked wheel at the end of a spur

Part_holonym

noun

a sharp prod fixed to a rider's heel and used to urge a horse onward