noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The SO₂²⁻ oxyanion; any salt containing this ion.
2. 2
   The thiosulfate anion and salts.

Etymology

From hypo- + sulfite.

Related phrases

hyposulfite of soda

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