iodine.
A chemical element (symbol: I) with an atomic number of 53; one of the halogens.
Meaning & usage
A chemical element (symbol: I) with an atomic number of 53; one of the halogens.
An antiseptic incorporating the element.
An iodide.
Where this word comes from
From French iode + -ine, from Ancient Greek ἰοειδής (ioeidḗs, “violet”). Coined by British chemist Humphry Davy in 1814.
to treat with iodine.
Where this word comes from
From French iode + -ine, from Ancient Greek ἰοειδής (ioeidḗs, “violet”). Coined by British chemist Humphry Davy in 1814.
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Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.