1. 碘 Iodine is a dark-coloured substance used in medicine and photography.
iodine英英釋義
noun
1. a tincture consisting of a solution of iodine in ethyl alcohol applied topically to wounds as an antiseptic
Synonym: tincture of iodine
2. 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)