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Definition of Sal volatile
1. Noun. A solution of ammonium carbonate in ammonia water and alcohol.
Medical Definition of Sal volatile
1. A hydroalcoholic solution containing approximately 2% ammonia and 4% ammonium carbonate and the aromatics: lemon oil, lavender oil, and myristica oil. Used mainly by inhalation to produce reflex stimulation in persons who have fainted or are at risk of syncope. Synonym: sal volatile, smelling salts. (05 Mar 2000)