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photo messaging
photo-offset
photo opportunity
photo story
photoactinic
photoactive
photoautotroph
photobiology
photobiotic
photoblastic
photocall
photocatalysis
photocathode
photocell
photochemical
photochemical smog
photochemistry
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phot

phot [ fōt ] (plural phots)


noun 
Definition:
 
unit of illumination: the centimeter-gram-second unit of illumination equal to one lumen per square centimeter

[Late 19th century. Via French< Greek phōt- "light"]
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