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