sodium sulphate

from WordNet (r) 3.0 (2006)

sodium sulphate
    n 1: a solid white bitter salt used in manufacturing glass and
         paper and dyes and pharmaceuticals [syn: {sodium sulphate},
         {sodium sulfate}]

from The Collaborative International Dictionary of English v.0.48

Sodium sulphate \So"di*um sul"phate\
   A salt well known as a catharic under the name of {Glauber's
   salt}, which term is properly applied to the hydrate,
   {Na2SO4.10H2O}.
   [Webster 1913 Suppl.]

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