3、An instrument used to measure the rotation of the plane of polarization of polarized light passing through an optical structure or sample.
2、Turning or rotating the plane of polarization of light to the left, or counterclockwise.
4、" Ability of a substance to rotate the plane of polarization of a beam of light passed through it, either as crystals or in solution. Clockwise rotation as one faces the light source is "positive,"or dextrorotary; counterclockwise rotation "negative,"or levorotary."
1、A turning to the especially of the plane of polarization of light.
