pho·​to·​po·​la·​rim·​e·​ter ˌfō-tō-ˌpō-lə-ˈri-mə-tər How to pronounce photopolarimeter (audio)
: an instrument used to measure the intensity and polarization of reflected light (as from clouds enveloping a planet)

Word History

First Known Use

circa 1889, in the meaning defined above

Time Traveler
The first known use of photopolarimeter was circa 1889

Dictionary Entries Near photopolarimeter

Cite this Entry

“Photopolarimeter.” Dictionary, Merriam-Webster, Accessed 5 Dec. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!