1. of, relating to, or containing iodine with a valence of three
Usage: chemistry; technical

Examples

• The iodous acid solution was prepared in the laboratory.
• Iodous compounds are less stable than their iodic counterparts.
• The chemist studied the properties of iodous salts.
• Iodous oxide decomposes readily at room temperature.
• The reaction produced an iodous intermediate compound.