a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks)

[ Syn: iodin , iodin , i , i , atomic number 53 , atomic number 53 ]

a tincture consisting of a solution of iodine in ethyl alcohol; applied topically to wounds as an antiseptic

[ Syn: tincture of iodine , tincture of iodine ]