Dictionary


pho•to•gen



Pronunciation: (fō'tu-jun, -jen"), [key]
—n.
1. a light oil obtained by the distillation of bituminous shale, coal, or peat: once commercially produced chiefly as an illuminant and as a solvent.
2. Biol.a photogenic organ, organism, or substance.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

photogelatin processphotogene

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