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Webster 1913 Edition
Photogen
Pho′to-gen
,Noun.
[
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
.] Definition 2024
photogen
photogen
English
Alternative forms
Noun
photogen (plural photogens)
- (chemistry) A light hydrocarbon oil resembling kerosene, used as a lubricant, illuminant, etc.
- (biology) A microorganism that produces phosphorescence.