酸さん化か窒ちっ素そ

noun

nitrogen oxide

Broad term covering several nitrogen-oxygen compounds; often refers to nitric oxide (NO) but can include nitrous oxide (N₂O), nitrogen dioxide (NO₂), dinitrogen pentoxide (N₂O₅), etc. Context usually specifies the exact compound.

• 自じ動どう車しゃの排はい気きガスには酸さん化か窒ちっ素そが含ふくまれている。

  Automobile exhaust contains nitrogen oxides.

• 酸さん化か窒ちっ素そは大たい気き汚お染せんの原げん因いん物ぶっ質しつの一ひとつだ。

  Nitrogen oxides are one of the causative agents of air pollution.