photogen (plural photogens)
(chemistry) A light hydrocarbon oil resembling kerosene, used as a lubricant, illuminant, etc.
(biology) A microorganism that produces phosphorescence.
Source: Wiktionary
Pho"to*gen, n. Etym: [Photo- + -gen.] (Chem.)
Definition: 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.]
Source: Webster’s Unabridged Dictionary 1913 Edition
8 November 2024
(noun) the act of furnishing an equivalent person or thing in the place of another; “replacing the star will not be easy”
According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.
