Medical Definition of salt
1a: a crystalline compound NaCl that is the chloride of sodium, is abundant in nature, and is used especially to season or preserve food or in industry—called also , b: a substance (as Glauber's salt) resembling common saltc: any of numerous compounds that result from replacement of part or all of the acid hydrogen of an acid by a metal or a group acting like a metal : an ionic crystalline compound
2salts plural a: a mineral or saline mixture (as Epsom salts) used as an aperient or catharticb: smelling salts
Learn More about salt
Seen and Heard
What made you want to look up salt? Please tell us where you read or heard it (including the quote, if possible).