The Collaborative International Dictionary
Polytungstic
Polytungstic \Pol`y*tung"stic\, a. (Chem.) Containing several tungsten atoms or radicals; as, polytungstic acid.
Polytungstic acid (Chem.), any one of several complex acids of tungsten containing more than one atom of tungsten.
Wiktionary
polytungstic
a. (context obsolete chemistry English) Of or pertaining to polytungstic acid