iodine

Etymology

From French iode + -ine, from Ancient Greek ἰοειδής (ioeidḗs, “violet”). Coined by British chemist Humphry Davy in 1814.

noun

  1. A chemical element (symbol: I) with an atomic number of 53; one of the halogens.
  2. An antiseptic incorporating the element.
  3. (countable, uncountable, obsolete) An iodide.

verb

  1. (transitive) to treat with iodine.

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