| n. | 1. | (Mach.) A tooth or projection, as on the periphery of a wheel, shaped so as to engage with a chain. |
| Noun | 1. | sprocket - roller that has teeth on the rims to pull film or paper through |
| 2. | sprocket - thin wheel with teeth that engage with a chain Synonyms: sprocket wheel | |
| 3. | sprocket - tooth on the rim of gear wheel Synonyms: cog |