Synset:laughing gas
Hypernyms:inhalation anaesthetic inhalation anesthetic inhalation general anaesthetic inhalation general anesthetic
Inherited Hypernyms:nitrous oxideinhalation anestheticgeneral anestheticanestheticdrugagentcausal agentphysical entityentity
Inherited Hypernyms:nitrous oxideinhalation anestheticgeneral anestheticanestheticdrugagentsubstancematterphysical entityentity
Substance Meronyms:ammonium nitrate