Photogen

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Photogen \Pho"to*gen\, n. [Photo- + -gen.] (Chem.)
     A light hydrocarbon oil resembling kerosene. It is obtained
     by distilling coal, paraffin, etc., and is used as a
     lubricant, illuminant, etc. [Written also {photogene}.]
     [1913 Webster]