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photopositive
photorealism
photoreception
photoreceptor
photoreconnaissance
photoresist
photorespiration
photosensitise
photosensitive
photosensitize
photosphere
photosynthesis
photosynthesize
photosystem
phototaxis
phototherapy
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photophobia
pho·to·pho·bi·a [ ftə fṓbee ə ]


noun 
Definition:
 
1. sensitivity to light: very low tolerance of the eye for light, sometimes a symptom of disease or migraine
2. fear of light: an irrational fear and avoidance of light or lighted spaces
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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