Hypernyms:oxyacid oxygen acid
Inherited Hypernyms:polyphosphoric acidoxyacidacidcompoundchemicalmaterialsubstancematterphysical entityentity
Inherited Hypernyms:polyphosphoric acidoxyacidacidcompoundchemicalmaterialsubstancepartrelationabstractionentity
Direct Hyponyms:metaphosphoric acidpyrophosphoric acid
Full Hyponyms:
metaphosphoric acidpyrophosphoric acid