Term: pyrophosphoric acid: a solid acid formed by reactions of orthophosphoric acid
Broader: physical entity: an entity that has physical existence | Unrelated: shoetree: a wooden or metal device that is inserted into a shoe to preserve its shape when it is not being worn
Broader: physical entity: an entity that has physical existence | Unrelated: sideline: a line that marks the side boundary of a playing field
Broader: physical entity: an entity that has physical existence | Unrelated: flying fox: large bat with a head that resembles the head of a fox
Broader: physical entity: an entity that has physical existence | Unrelated: cheapskate: a miserly person
Broader: physical entity: an entity that has physical existence | Unrelated: sandfly fever: a mild viral disease transmitted by the bite of the sand fly Phlebotomus papatasii
Broader: physical entity: an entity that has physical existence | Unrelated: hinge: a joint that holds two parts together so that one can swing relative to the other
Broader: physical entity: an entity that has physical existence | Unrelated: secretary of education: the person who holds the secretaryship of the Department of Education
Broader: physical entity: an entity that has physical existence | Unrelated: visit: the act of visiting in an official capacity (as for an inspection)
Broader: physical entity: an entity that has physical existence | Unrelated: 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
Broader: physical entity: an entity that has physical existence | Unrelated: model: a hypothetical description of a complex entity or process