| rota | (noun) a roster of names showing the order in which people should perform certain duties | - |
|---|
| rotary | (noun) a road junction at which traffic streams circularly around a central island | Synonyms: circle, roundabout, traffic circle |
|---|
| (noun) electrical converter consisting of a synchronous machine that converts alternating to direct current or vice versa | Synonyms: rotary converter, synchronous converter |
| rotation | (noun) the act of rotating as if on an axis | Synonyms: rotary motion |
|---|
| (noun) a planned recurrent sequence (of crops or personnel etc.) | - |
| (noun) a single complete turn (axial or orbital) | Synonyms: gyration, revolution |
| (noun) (mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin | - |
| rotavirus | (noun) the reovirus causing infant enteritis | - |
|---|