noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An anion with the formula P₂O₅⁴⁻, or salt containing this.
2. 2
   A chemical containing two phosphite groups. in-compounds

Etymology

From di- + phosphite.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.