rotary
adjective /ˈrəʊtəri/
/ˈrəʊtəri/
[only before noun]- (of a movement) moving in a circle around a central fixed point
- rotary motion
- (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’.