iodine: Meaning and Definition of


Pronunciation: (?'u-d?n", -din in Chem. also ?'u-d?n"), [key]
? n. Chem.
  1. a nonmetallic halogen element occurring at ordinary temperatures as a grayish-black crystalline solid that sublimes to a dense violet vapor when heated: used in medicine as an antiseptic. Symbol: I; at. wt.: 126.904; at. no.: 53; sp. gr.: (solid) 4.93 at 20C.
Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease.
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