All laughing gas synonyms
laugh·ing gas
L l noun laughing gas
- anesthetic — relating to, with, or characterized by anesthesia
- nitrous oxide — a colorless, sweet-smelling, sweet-tasting, nonflammable, slightly water-soluble gas, N 2 O, that sometimes produces a feeling of exhilaration when inhaled: used chiefly as an anesthetic in dentistry and surgery, in the manufacture of chemicals, and as an aerosol.