亜あ酸さん化か窒ちっ素そMeaningsNoun1. nitrous oxide (N2O)Kanji used亜Asia酸acid化transformation窒suffocate素elementaryPitch accentあさんかちっそComposed of亜あsub-; second-rate; inferior; -ous (indicating a low oxidation state); -ite; Asia; Argentina; ArabiaPrefix酸さん化かoxidation; oxidizationNoun窒ちっ素そnitrogen (N)Noun