gas and air

== English == === Noun === gas and air (uncountable) (medicine, idiomatic) An equal mixture of nitrous oxide and oxygen, used as a mild analgesic and anaesthetic, particularly during childbirth, for dental procedures, and in emergency medicine. Meronyms: nitrous oxide, N₂O; oxygen (strict sense), oxygen (loose sense), dioxygen, O₂ Near-synonym: Entonox (trade name: one particular brand) Used other than figuratively or idiomatically: see gas,‎ and,‎ air. === Anagrams === ardi gasna, Drăgășani, Asgardian