Epsom salts

noun

plural in form but singular or plural in construction

: a bitter colorless or white crystalline salt MgSO₄·7H₂O that is a hydrated magnesium sulfate with cathartic properties

Examples of Epsom salts in a Sentence

Recent Examples on the Web

In addition is a regime of far less appetizing supplements—daily Epsom salts, bitterdrops, and other shots—which aid in the detoxifying process. — Clare Coulson, Condé Nast Traveler, 2 July 2026

If your soil needs magnesium, then adding Epsom salts may be a helpful treatment. — Anyssa Roberts, The Spruce, 21 Apr. 2026

Many social media posts will tout easy fixes with home items like Epsom salts, eggshells, or coffee grounds. — Andy Wilcox, Better Homes & Gardens, 20 Apr. 2026

Applying too much of any single nutrient, including magnesium from Epsom salts, can make other nutrients unavailable to the plant. — Rita Perwich, San Diego Union-Tribune, 7 Mar. 2026

Word History

Etymology

Epsom, England

First Known Use

1828, in the meaning defined above

Rhymes for Epsom salts

• somersaults
• thunderbolts
• asphalts
• assaults
• basalts
• defaults
• exalts
• faults
• halts
• malts
• vaults
• waltz

Medical Definition

Epsom salts

noun, plural in form but singular or plural in construction

: a bitter white crystalline salt MgSO₄·7H₂O that is a hydrated magnesium sulfate with cathartic properties

called also bitter salts