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WordReference Random House Unabridged Dictionary of American English © 2024po•lar•i•scope (pō lar′ə skōp′, pə-),USA pronunciation n. [Optics.]- Opticsan instrument for measuring or exhibiting the polarization of light or for examining substances in polarized light, often to determine stress and strain in glass and other substances.
- Medieval Latin polāri(s) polar + -scope
- 1820–30;
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