13 letters · 23 points in Scrabble
adjective of or relating to photoemission
originEtymology 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 emissive English photoemissive From photo- + emissive.
Etymology from Wiktionary, CC BY-SA 3.0