• synonyms


  1. sensitive to light or similar radiation.
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Origin of photosensitive

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for photosensitive

Contemporary Examples

Historical Examples

  • Did quite well with the other drafting equipment, you know, especially the dimensional curve and the photosensitive ink.

    The Big Bounce

    Walter S. Tevis

  • It is only a metaphor to call reactions resulting from the presence of photosensitive substances adaptation.

  • The light causes chemical changes in the eyes (or the photosensitive elements of the skin).

British Dictionary definitions for photosensitive


  1. sensitive to electromagnetic radiation, esp lighta photosensitive photographic film
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Derived Formsphotosensitivity, noun
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

photosensitive in Medicine


  1. Sensitive or responsive to light or other radiant energy.
  2. Abnormally sensitive or reactive to light.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.