polarizing filter(redirected from Photographic filter)
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polarizing filter[′pō·lə‚rīz·iŋ ‚fil·tər]
A device which selectively absorbs components of electromagnetic radiation passing through it, so that light emerging from it is plane-polarized.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.