Term: pyrophosphoric acid: a solid acid formed by reactions of orthophosphoric acid
Candidate hypernym: physical entity: an entity that has physical existence → 1
Candidate hypernym: shoetree: a wooden or metal device that is inserted into a shoe to preserve its shape when it is not being worn → 0
Candidate hypernym: sideline: a line that marks the side boundary of a playing field → 0
Candidate hypernym: flying fox: large bat with a head that resembles the head of a fox → 0
Candidate hypernym: cheapskate: a miserly person → 0
Candidate hypernym: sandfly fever: a mild viral disease transmitted by the bite of the sand fly Phlebotomus papatasii → 0
Candidate hypernym: hinge: a joint that holds two parts together so that one can swing relative to the other → 0
Candidate hypernym: secretary of education: the person who holds the secretaryship of the Department of Education → 0
Candidate hypernym: visit: the act of visiting in an official capacity (as for an inspection) → 0
Candidate hypernym: moniliaceae: family of imperfect fungi having white or brightly colored hyphae and spores that are produced directly on the mycelium and not aggregated in fruiting bodies → 0
Candidate hypernym: model: a hypothetical description of a complex entity or process → 0