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pl.n. (used with a sing. verb)
Hydrated magnesium sulfate, MgSO4·7H2O, used as a cathartic and as an agent to reduce inflammation.
[After Epsom, former name of Epsom and Ewell, England.]
(Medicine) (functioning as singular or plural) a medicinal preparation of hydrated magnesium sulphate, used as a purgative
[C18: named after Epsom, where they occur naturally in the water]
A bitter, colorless, crystalline salt, used in making textiles, in fertilizers, for medical purposes, and as an additive to bath water to soothe the skin. It consists of hydrated magnesium sulfate.
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|Noun||1.||Epsom salts - hydrated magnesium sulfate that is taken orally to treat heartburn and constipation and injected to prevent seizures|
magnesium sulfate - a salt of magnesium
|2.||Epsom salts - (used with a singular noun) hydrated magnesium sulfate used as a laxative|