光触媒作用 ひかりしょくばいさよう Meanings Noun photocatalysis See also: 光触媒 (ひかりしょくばい). Kanji 光 light. Read as ひかり. 触 touch. Read as ショク. 媒 medium. Read as バイ. 作 make 用 use. Read as ヨウ. Jinuma: Japanese Dictionary · Word lists