笑氣 [－气]

Jyutping siu3 hei3
Pinyin xiào qì

Definitions (粵典–words.hk)
  1. 名詞
    一種​麻醉​氣體​，​化學式​N​₂​O
    laughing gas
Definitions (Wiktionary)
  1. noun, informal
    laughing gas; nitrous oxide

笑氣 [－气]

Jyutping
Pinyin xiào qì

Definitions (CC-CEDICT)
  1. laughing gas (nitrous oxide)