PHOTOGEN
Pho"to*gen, n. Etym: [Photo- + -gen.] (Chem.)
Defn: 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.]
PHOTOGENE
Pho"to*gene, n. Etym: [See Photogen.]
1. A photograph. [Obsoles.]
2. A more or less continued impression or image on the retina. H. Spencer.
PHOTOGENIC
Pho`to*gen"ic, a.
Defn: Of or pertaining to photogeny; producing or generating light.
PHOTOGENY
Pho*tog"e*ny, n. Etym: [See Photogen.]
Defn: See Photography. [Obsoles.]
PHOTOGLYPHIC
Pho`to*glyph"ic, a. Etym: [Photo- + Gr.