Epsom salts
noun/ˈepsəm sɔːlts/
/ˈepsəm sɔːlts/
[plural]- a white powder that can be mixed with water and used as a medicine or laxativeWord Originmid 18th cent.: named after the town of Epsom, in Surrey, SE England, where it was first found occurring naturally.
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Epsom salts