تعريف sulfurous acid في الإنجليزية الإنجليزية القاموس.
The weak acid, H2SO3, present in a solution of sulfur dioxide in water; it is a reducing agent and mild bleach
A colorless solution of sulfur dioxide in water, H, characterized by a suffocating sulfurous odor, used as a bleaching agent, preservative, and disinfectant