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[ri-flek-ter] /rɪˈflɛk tər/
a person or thing that reflects.
a body, surface, or device that reflects light, heat, sound, or the like.
a substance, as graphite or heavy water, used to prevent the escape of neutrons from the core of a nuclear reactor.
Origin of reflector
1655-65; reflect + -or2
Related forms
nonreflector, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for reflector
Historical Examples
  • By many, indeed, Newton is regarded as the inventor of the reflector.

    Astronomy David Todd
  • Not even the great Whernside reflector was able to pick it up.

    The World Peril of 1910 George Griffith
  • The products of combustion are led outside through a flattened chimney, t, resting at o on the center of the reflector.

  • Jumping up on a table, he fixed it to the top of the reflector over the gas-jet.

    The Silent Bullet Arthur B. Reeve
  • A piece of tin, or bright metal, is placed beneath each globe for a reflector.

  • A comparison has already been made in an article in the "reflector."

  • The machine of the metal monsters was provided with a huge lens and a reflector, and these were trained on the bowl.

    Wanderer of Infinity Harl Vincent
  • The reflector, on the other hand, forms the image at the focus of a concave mirror.

    Pleasures of the telescope Garrett Serviss
  • In America the reflector has always kept at least even pace with the refractor.

    Astronomy David Todd
  • The same eyepieces will serve for either the reflector or the refractor.

    Pleasures of the telescope Garrett Serviss
British Dictionary definitions for reflector


a person or thing that reflects
a surface or object that reflects light, sound, heat, etc
a small translucent red disc, strip, etc, with a reflecting backing on the rear of a road vehicle, which reflects the light of the headlights of a following vehicle
another name for reflecting telescope
part of an aerial placed so as to increase the forward radiation of the radiator and decrease the backward radiation
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
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Word Origin and History for reflector

also reflecter, 1660s, agent noun in Latin form from reflect. As an attachment to a vehicle, etc., from 1909. As a type of telescope, 1767.

Online Etymology Dictionary, © 2010 Douglas Harper
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reflector in Medicine

reflector re·flec·tor (rĭ-flěk'tər)
A surface that reflects light, heat, or sound.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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