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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 photogen
 頁岩煤油; 發光器

From: Webster's Revised Unabridged Dictionary (1913)

 Pho·to·gen n.  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.]
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