laughing gas (n) (chemistry) | oxyde azoteux (m) (n) (chemistry) |
laughing gas (n) (chemistry) | protoxyde d'azote (m) (n) (chemistry) |
laughing gas (n) (chemistry) | gaz hilarant (m) (n) (chemistry) |
laughing gas (n) (chemistry) | oxyde nitreux (m) (n) (chemistry) |