Hypertext Webster Gateway: "sprocket"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Sprocket \Sprock"et\, n. [Etymology uncertain.] (Mach.)
(a) A tooth or projection, as on the periphery of a wheel,
shaped so as to engage with a chain.
(b) A sprocket wheel.
From WordNet (r) 1.7 (wn)
sprocket
n 1: roller that has teeth on the rims to pull film or paper
through
2: thin wheel with teeth that engage with a chain [syn: {sprocket
wheel}]
3: tooth on the rim of gear wheel [syn: {cog}]
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