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photoreception

[foh-toh-ri-sep-shuh n] /ˌfoʊ toʊ rɪˈsɛp ʃən/
noun
1.
the physiological perception of light.
Origin
1905-1910
1905-10; photo- + reception
Related forms
photoreceptive, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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photoreception in Medicine

photoreception pho·to·re·cep·tion (fō'tō-rĭ-sěp'shən)
n.
The detection, absorption, and use of light, as for vision in animals or phototropism and photosynthesis in plants.


pho'to·re·cep'tive (-tĭv) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for photoreception

any of the biological responses of organisms to stimulation by light. Most organisms, including humans, respond to visible light; some react to wavelengths of light not seen by humans; and still others can react to properties of light not detectable by humans, such as polarization (vibration of light waves in a definite pattern). This article is concerned with the sensory processes by which animals detect information carried by light.

Learn more about photoreception with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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