n. A device for measuring the optical properties of polarized light.
The Century Dictionary and Cyclopedia
n. An instrument in which are combined a spectroscope and a polariscope, used for determining the amount of optical rotation of media.
Word Usage
"CNRS-Insu France in collaboration with the Research Council of Canada and the University of Hawaii have recently installed a stellar spectropolarimeter on the Bernard Lyot Telescope In France."