laughing gas
英 [ˈlɑːfɪŋ ɡæs]
美 [ˈlæfɪŋ ɡæs]
n. 笑气; 一氧化二氮
柯林斯词典
- （用作麻醉剂的）笑气，一氧化二氮
Laughing gasis a type of anaesthetic gas which sometimes has the effect of making people laugh uncontrollably.
英英释义
noun
- inhalation anesthetic used as an anesthetic in dentistry and surgery