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io·do·form ī-'ōd-ə-.fȯrm, -'äd- n a yellow crystalline volatile compound CHI3 with a penetrating persistent odor that is used as an antiseptic dressing
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io·do·form (i-oґdo-form) [iodo- + formyl] [USP] chemical name: triiodomethane. A greenish yellow powder or crystals, CHI3, having a strong, penetrating odor, containing about 96 per cent iodine, and soluble in chloroform and ether and somewhat in alcohol and water: used as a topical antiinfective, applied to the skin, and used for packing cavities in oral and otorhinologic surgery.Medical dictionary. 2011.