polarimeter noun. [pǝʊlǝ'rɪmɪtǝ] M19.
[from POLARI- + -METER.]
An instrument for measuring the polarization of light, and esp. for determining the rotation of the plane of polarization by a substance through which the light passes.

■ polari'metric adjective of or pertaining to a polarimeter or polarimetry L19.

■ polari'metrically adverb M20.

■ polarimetry noun the measurement of the polarization of light or other electromagnetic radiation; the use of a polarimeter: M19.

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