- a colorless, crystalline, water-soluble, poisonous powder, H2SeO3, used chiefly as a reagent.
Origin of selenious acid
First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a white soluble crystalline strong dibasic acid analogous to sulphurous acid. Formula: H 2 SeO 3