夜や光こう

noun, noun which may take the genitive case particle 'no'

nocturnal luminescence; noctilucence

Refers to light emitted or visible at night, often in natural contexts like bioluminescence or moonlight. Used as a noun or in compounds like 夜光虫 (noctiluca).

• 夜や光こう虫ちゅうが海うみで青あおく光ひかっていた。

  Noctiluca were glowing blue in the sea.

• 夜や光こう塗と料りょうは暗くら闇やみで光ひかる。

  Noctilucent paint glows in the dark.