1. a road junction at which traffic streams circularly around a central island - the accident blocked all traffic at the rotary • Syn: traffic circle, circle, roundabout • Hypernyms: junction • Part Holonyms: road, route 2. electrical converter consisting of a synchronous machine that converts alternating to direct current or vice versa • Syn: synchronous converter, rotary converter • Hypernyms: electrical converter
II - adjective
1. relating to or characterized by rotation (Freq. 1) - rotary dial • Pertains to noun: rotation 2. describing a circle; moving in a circle - the circular motion of the wheel • Syn: circular, orbitual • Similar to: cyclic, cyclical • Derivationally related forms: circle (for: circular)