Dictionary entry

Metaphosphoric

Webster's Dictionary 1913

Met′a‐phos‐phor″ic (?), a. [Pref. meta- + phosphoric.] (Chem.) Pertaining to, or designating, a monobasic acid, HPO3, analogous to nitric acid, and, by heating phosphoric acid, obtained as a crystalline substance, commonly called glacial phosphoric acid.