noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The anion S₂O₅²⁻; any salt containing this anion

Synonyms

All synonyms

metabisulfitemetabisulfite

Etymology

From pyro- + sulphite.

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