Medicine-cabinet item

• It's used in dyes and photography
• Antiseptic: Var.
• Used especially in medicine and photography and in dyes
• Salt additive: Var
• Medicinal aid: Var.
• Antiseptic: Var
• Halogenous element
• Element used in medicine: Var.

Wiktionary Word definitions in Wiktionary
n. (context obsolete US English) (alternative form of iodine English)