| polarise | To put into a state of polarization. (05 Mar 2000) |
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| polarised light | Light in which, as a result of reflection or transmission through certain media, the vibrations are all in one plane, transverse to the ray, instead of in all planes. (05 Mar 2000) |
| polariser | The first element of a polariscope that polarises the light, as distinguished from the analyzer, the second polarising element. (05 Mar 2000) |