| 旋 |
xuán guāng | rotation of plane of polarization of light |
| 旋 |
xuán | to revolve / a loop / a circle |
| 旋 |
xuàn | to whirl / immediately / variant of 镟 |
| 光 |
guāng | light; ray (CL:道) / bright; shiny / only; merely / used up; finished / to leave (a part of the body) uncovered |