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planet gear
DEFINITIONS OF:
planet gear
1
n
an outer gear that revolves about a central sun gear of an epicyclic train
Synonyms:
epicyclic gear
,
planet wheel
,
planetary gear
Type of:
cogwheel
,
gear
,
gear wheel
,
geared wheel
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
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