| 单词 | rotary |
| 释义 | rotary (once / 5334 pages) 1adjn 2n Anything rotary has a circular form, like an old-fashioned phone. A rotary is also a traffic circle. Just as the Earth rotates around the sun, rotary objects move in a circle or orbit. A rotary telephone has a circular dial that turns, and a rotary mower has a cutting blade that moves in a circular motion. A type of street where traffic flows in a circle — sometimes called a roundabout — can also be called a rotary. The word stems from the Latin word rotarius, "pertaining to wheels," from its root word rota, or "wheel." WORD FAMILYrotary: rotaries USAGE EXAMPLESThe city of Wichita thought the rotary jail was the most secure jail built, Bayens said. Washington Times(Dec 30, 2016) Other automakers also use electronic rotary shifters, but the fact that they're different from conventional shifters seems to confuse drivers. New York Times(Dec 20, 2016) Lockheed’s rotary and mission systems business unit, which handles the bulk of its semiconductor work, spent a year preparing for the investment. Wall Street Journal(Dec 15, 2016) 1 1adj describing a circle; moving in a circle Syn circular, orbitual cyclic, cyclical recurring in cycles 2adj relating to or characterized by rotation rotary dial 3n a road junction at which traffic streams circularly around a central island 2the accident blocked all traffic at the rotary Syn|Hyper circle, roundabout, traffic circle junction the place where two or more things come together n electrical converter consisting of a synchronous machine that converts alternating to direct current or vice versa Syn|Hyper rotary converter, synchronous converter electrical converter converter that converts alternating current into direct current or vice versa |
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