. "a substance (such as sodium chloride) that lessens the hardness of water by replacing calcium and magnesium ions with sodium ions and so gives the water more efficient sudsing power"@en-us . "0"^^ . . "110803102"@en-us . . . . . "114202416"@en-us . "115056112"^^ . . . "water softener"@en-us . "0"^^ . "water softener"^^ . "15056112-n"^^ . .