C19: from Greek phōtogenēs light-produced. See photo-, -gene
photogene in American English
(ˈfoʊtəˌdʒin)
noun
afterimage
Word origin
see photo- & -gen
photogene in American English
(ˈfoutəˌdʒin)
noun
Ophthalmology
an afterimage on the retina
Word origin
[1850–55; photo- + -gene, var. of -gen]This word is first recorded in the period 1850–55. Other words that entered Englishat around the same time include: cloakroom, ethos, ethylene, muggins, proletariatphoto- is a combining form meaning “light” (photobiology); also used to represent “photographic” or “photograph” in the formation of compoundwords. Other words that use the affix photo- include: photogen, photogravure, photomultiplier, photopathy, photorealism; -gen is a combining form meaning “that which produces,” used in the formation of compoundwords. Other words that use the affix -gen include: endogen, hydrogen