laughing gas
Longman Dictionary of Contemporary English 5++LDOCE 5++ˈlaughing gas noun [uncountable] informalMH a gas that is sometimes used to stop you feeling pain during an operation 笑气，一氧化二氮〔有时在手术中用于止痛〕
Examples from the Corpus
laughing gas• If he runs out of laughing gas, the pharmacist will be right there with the perfect drug.ˈlaughing gas nounChineseSyllable
stop gas sometimes is that you a Corpus used to
laughing gas
ˈlaughing gas
noun [uncountable]
informal a gas that is sometimes used to stop you feeling pain during an operation
ˈlaughing gas
noun [uncountable]informal a gas that is sometimes used to stop you feeling pain during an operation