sprocket

• POS: Noun
• HYPHEN: sprock=et

CIDE DICTIONARY

sprocket, n. [Etymology uncertain.].

 A tooth or projection, as on the periphery of a wheel, shaped so as to engage with a chain.  [Webster 1913 Suppl.]

OXFORD DICTIONARY

sprocket, n.
1 each of several teeth on a wheel engaging with links of a chain, e.g. on a bicycle, or with holes in film or tape or paper.
2 (also sprocket-wheel) a wheel with sprockets.

Etymology

16th c.: orig. unkn.

THESAURUS

sprocket

cog, comb, crag, fang, harrow, jag, peak, pecten, projection, rake, ratchet, sawtooth, snag, snaggle, spire, spur, steeple, tooth