高高度放電発光 こうこうどほうでんはっこう Also written 高々度放電発光 Meanings Noun transient luminous event Kanji 高 high. Read as コウ. 度 degree 放 release. Read as ホウ. 電 electric. Read as デン. 発 emit. Read as ハツ. 光 light. Read as コウ. Jinuma: Japanese Dictionary · Word lists