grindingwheel
nounUK /ˈɡraɪndɪŋ wiːl/
US /ˈɡraɪndɪŋ wiːl/
A grinding wheel is a round stone that spins fast to make rough things smooth.
The worker used a grinding wheel to sharpen the old knife.
OTHER MEANINGS
2. A wheel-shaped tool made of abrasive material used in machines to cut or polish metal.
The factory replaced the worn grinding wheel on the bench grinder.
3. A stone wheel turned by a treadle or motor for sharpening blades and tools.
Grandpa spun the grinding wheel to sharpen his axe.
4. Any rotating disc coated with abrasive grit for smoothing surfaces.
She fitted a fine grinding wheel to polish the glass edge.