発はっ光こう

noun, noun or participle which takes 'suru', intransitive verb

emission of light; luminescence

Refers to the physical process of emitting light, whether natural (fireflies, glow sticks) or artificial (LEDs, screens). Used as both a noun and a suru-verb.

• ホタルが夜よるに発はっ光こうする。

  Fireflies emit light at night.

• この物ぶっ質しつは紫し外がい線せんで発はっ光こうします。