• Webster's Revised Unabridged Dictionary
    • a Metatungstic (Chem) Of, pertaining to, or designating, an acid known only in its salts (the metatungstates) and properly called polytungstic, or pyrotungstic, acid.
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Century Dictionary and Cyclopedia
    • metatungstic Noting a metallic acid, forming small yellow crystals of the composition H2W4O13.7H2O, obtained by decomposing barium metatungstate by dilute sulphuric acid. It differs from ordinary or normal tungstic acid in being soluble in water.
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Webster's Revised Unabridged Dictionary
Pref. meta-, + tungstic,