iodine
noun/ˈaɪədiːn/
/ˈaɪədaɪn/
[uncountable] (symbol I)
- a chemical element. Iodine is a substance found in seawater. A liquid containing iodine is sometimes used as an antiseptic (= a substance used on wounds to prevent infection).Topics Physics and chemistryc2Word Originearly 19th cent.: from French iode (from Greek iōdēs ‘violet-coloured’, from ion ‘violet’ + -eidēs ‘like’) + -ine.
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