Adjective rotary has 2 senses
- rotary - relating to or characterized by rotation; "rotary dial"
 
- circular, rotary - marked by or moving in a circle
 Antonyms:  noncyclic, noncyclical (indirect, via cyclic)
 
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Noun rotary has 2 senses
- traffic circle, circle, rotary, roundabout - a road junction at which traffic streams circularly around a central island; "the accident blocked all traffic at the rotary"
 --1 is a kind of junction
 --1 is a part of road, route
 
- synchronous converter, rotary, rotary converter - electrical converter consisting of a synchronous machine that converts alternating to direct current or vice versa
 --2 is a kind of electrical converter
 
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