óxido nitroso

== Spanish == === Pronunciation === IPA(key): /ˌoɡsido niˈtɾoso/ [ˌoɣ̞.si.ð̞o niˈt̪ɾo.so] Syllabification: ó‧xi‧do ni‧tro‧so === Noun === óxido nitroso m (plural óxidos nitrosos) (inorganic chemistry) nitrous oxide Synonyms: gas de la risa, gas hilarante