Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary


noun pho·to·po·la·rim·e·ter \ˌfō-tō-ˌpō-lə-ˈri-mə-tər\

Definition of photopolarimeter

  1. :  an instrument used to measure the intensity and polarization of reflected light (as from clouds enveloping a planet)

Circa 1889

First Known Use of photopolarimeter

circa 1889

Seen and Heard

What made you want to look up photopolarimeter? Please tell us where you read or heard it (including the quote, if possible).