1. circular intersections where traffic moves in one direction around a central island
Usage: plural of rotary
2. rotating machines or mechanical devices
Usage: plural of rotary; technical

Examples

• The city installed several new rotaries to improve traffic flow.
• Drivers often find rotaries confusing at first.
• European cities commonly use rotaries instead of traffic lights.
• The rotaries in this area reduce accidents significantly.
• Industrial rotaries are used in manufacturing processes.
• These rotaries operate at high speeds for maximum efficiency.