noun
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
• Syn: ↑gear, ↑geared wheel, ↑cogwheel
• Hypernyms: ↑wheel
• Hyponyms:
↑bevel gear, ↑pinion and crown wheel, ↑pinion and ring gear, ↑escape wheel, ↑pinion, ↑planetary gear, ↑epicyclic gear, ↑planet wheel, ↑planet gear, ↑rack and pinion, ↑spur gear, ↑spur wheel, ↑sun gear, ↑worm gear, ↑worm wheel
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nounUseful english dictionary. 2012.