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softener

Definitions of softener
  1. noun
    a substance added to another to make it less hard
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    types:
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    conditioner
    a substance used in washing (clothing or hair) to make things softer
    plasticiser, plasticizer
    a substance added to plastics or other materials to make them more pliable
    water softener
    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
    zeolite
    any of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassium; formed in cavities in lava flows and in plutonic rocks
    type of:
    chemical, chemical substance
    material produced by or used in a reaction involving changes in atoms or molecules
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