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phosphorogen [fɒs'fɒrədʒən, fɑːs'fɔːrə-] n stresses
gen.	люминоген
el.	активатор люминофора
Gruzovik, phys.	люминоген (a substance that promotes phosphorescence in another substance, as manganese does in zinc sulfide)
Makarov.	фосфороген (основа люминофора)
tech.	фосфороген