phot

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phot

(fōt),
A unit of illumination; 1 phot equals 1 lumen/cm2 of surface.
[G. phōs (phōt-), light]

phot

[fot]
Etymology: Gk, phos, light
the centimeter-gram-second unit of illumination, being one lumen per square centimeter.

phot

(fōt) [Gr. photos, light],

ph

The unit of photochemical energy equal to 1 lumen/cm2 or about 929 foot-candles.