Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for iodine from the 1913 edition of Webster's Revised Unabridged Dictionary. Define iodine using one of the most comprehensive free online dictionaries on the web.

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Part of Speech: noun
Results: 1
1. A nonmetallic element, of the halogen group, occurring always in combination, as in the iodides. When isolated it is in the form of dark gray metallic scales, resembling plumbago, soft but brittle, and emitting a chlorinelike odor. Symbol I. Atomic weight 126. 5. If heated, iodine volatilizes in beautiful violet vapors.
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