photoluminescence

noun

the re-emission of photons from a surface following exposure

Wiktionary

noun

Etymology: Etymology tree Proto-Indo-European *bʰeh₂- Proto-Indo-European *bʰéh₂os Proto-Hellenic *pʰáwos Ancient Greek φᾰ́ος (phắos) Ancient Greek φῶς (phôs) Ancient Greek φωτο- (phōto-)der. English photo- English luminescence English photoluminescence From photo- + luminescence.

luminescence following the absorption of a photon.