The Collaborative International Dictionary
Iodous
Iodous \I"o*dous\, a. (Chem.) Pertaining to, or containing, iodine. See -ous (chemical suffix).
Iodous acid, a hypothetical acid, analogous to chlorous acid.
Wiktionary
iodous
a. 1 Of, pertaining to, or containing iodine 2 Of or pertaining to iodous acid or its derivatives