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photolithography
photoluminescence
photolysis
photomap
photomask
photomechanical
photometry
photomicrograph
photomontage
photomosaic
photomultiplier
photon
photonegative
photonics
photonuclear
photoperiod
photoperiodism
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photopia
pho·to·pi·a [ fō tṓpee ə ]


noun 
Definition:
 
day vision: normal vision during daylight, when the activity of the cones in the retina enables the eye to perceive color

pho·to·pic [ fō tṓpik, fō tóppik ] adjective
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