/ Dictionary / Index P polariscope: Meaning and Definition of Find definitions for: po•lar•i•scope Pronunciation: (pō-lar'u-skōp", pu-), [key] — n. Optics. an 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. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polariscope (Thesaurus) Polaris polarity Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language