[foh-toh-ri-sep-shuh n]


the physiological perception of light.

Nearby words

  1. photoradiation,
  2. photoradiation therapy,
  3. photoreaction,
  4. photoreactivation,
  5. photorealism,
  6. photoreceptor,
  7. photoreceptor cell,
  8. photorecon,
  9. photoreconnaissance,
  10. photorecorder

Origin of photoreception

First recorded in 1905–10; photo- + reception

Related formspho·to·re·cep·tive, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for photoreception




The detection, absorption, and use of light, as for vision in animals or phototropism and photosynthesis in plants.
Related formspho′to•re•ceptive (-tĭv) adj.

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