rotary
adjective/ˈrəʊtəri/
/ˈrəʊtəri/
[only before noun]- (of a movement) moving in a circle around a central fixed point
- rotary motion
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- (of a machine or piece of equipment) having parts that move in this way
- a rotary engine
Word Originmid 18th cent.: from medieval Latin rotarius, from rota ‘wheel’.
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rotary