Meaning of SPROCKET in English

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.

[ 16th c.: orig. unkn. ]

Concise Oxford English dictionary.      Краткий оксфордский словарь английского языка.