Iodine
/ˈaɪ.əˌdaɪn/ noun, verb
noun, verb ·Uncommon ·College level
Definitions
Noun
- 1 A chemical element (symbol: I) with an atomic number of 53; one of the halogens. uncountable, usually
- 2 a tincture consisting of a solution of iodine in ethyl alcohol; applied topically to wounds as an antiseptic wordnet
- 3 An antiseptic incorporating the element. uncountable, usually
- 4 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) wordnet
- 5 An iodide. countable, obsolete, uncountable, usually
Verb
- 1 to treat with iodine. transitive
Antonyms
All antonymsExample
More examples"Fluorine, chlorine, bromine, iodine and astatine are halogens."
Etymology
From French iode + -ine, from Ancient Greek ἰοειδής (ioeidḗs, “violet”). Coined by British chemist Humphry Davy in 1814.