iodine
noun(io-dine)
a nonmetallic halogen element obtained usually as heavy shining blackish-gray crystals and used especially in medicine, photography, and analysis
iodine
noun(io-dine)
a tincture of iodine used especially as a topical antiseptic
iodine
noun(io-dine)
a light bulb consisting of a quartz bulb and a tungsten filament with the bulb containing iodine which reacts with the vaporized tungsten to prevent excessive blackening of the bulb