Main Entry: io·dine

Pronunciation: \ˈī-ə-ˌdīn, -d^ən, -ˌdēn\

Function: noun

Usage: often attributive

Etymology: French iode, from Greek ioeidēs violet colored, from ion violet

Date: 1814

1 : a nonmetallic halogen element obtained usually as heavy shining blackish-gray crystals and used especially in medicine, photography, and analysis — see element table
2 : a tincture of iodine used especially as a topical antiseptic