a person or thing that polarizes.
Optics. a device, often a crystal or prism, that polarizes light.

Origin of polarizer

First recorded in 1850–55; polarize + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for polarizer

Historical Examples of polarizer

  • I would deny flatly that I had anything to do with the Polarizer, in any case.

    By Proxy

    Gordon Randall Garrett

  • But the cold, white glare was more intense than he had expected, and he had to shut them again and turn on the polarizer.

    The Marooner

    Charles A. Stearns

  • Placing the plate in front of the polarizer, I turn one of the Nicols until the two halves of the plate show a common puce colour.

  • First, then, we have a prism which receives the light from the electric lamp, and which is called the polarizer.

  • Through this glass the beam from the polarizer now passes, being intercepted by the Nicol in front.

British Dictionary definitions for polarizer




a person or a device that causes polarization
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012