(n.) 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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). iodine. Retrieved September 23, 2026, from http://smartdefine.org/iodine/definitions/2023575 |
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| MLA | Webster's. "iodine" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/iodine/definitions/2023575> |