'Iodine' definitions:

Definition of 'iodine'

From: WordNet
noun
A nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks) [syn: iodine, iodin, I, atomic number 53]
noun
A tincture consisting of a solution of iodine in ethyl alcohol; applied topically to wounds as an antiseptic [syn: tincture of iodine, iodine]

Definition of 'Iodine'

From: GCIDE
  • Iodine \I"o*dine\ ([imac]"[-o]*d[i^]n or [imac]"[-o]*d[=e]n; 104), n. [Gr. 'iw`dhs violetlike; 'i`on a violet + e'i^dos form: cf. F. iode, iodine. The name was given from the violet color of its vapor. See Violet, Idyl.] (Chem.) A nonmetallic element, of the halogen group of atomic number
  • 53, 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 126.90. If heated, iodine volatilizes in beautiful violet vapors. [1913 Webster]
  • Note: Iodine was formerly obtained from the ashes of seaweed (kelp or varec), but is now also extracted from certain natural brines. In the free state, iodine, even in very minute quantities, colors starch blue. Iodine and its compounds are largely used in medicine (as in liniments, antisyphilitics, etc.), in photography, in the preparation of aniline dyes, and as an indicator in titration. [1913 Webster]
  • Iodine green, an artificial green dyestuff, consisting of an iodine derivative of rosaniline; -- called also {night green}.
  • Iodine scarlet, a pigment of an intense scarlet color, consisting of mercuric iodide.
  • Iodine yellow, a brilliant yellow pigment, consisting of plumbic iodide. [1913 Webster]

Definition of 'Iodine'

From: Elements
  • Symbol: I
  • Atomic number: 53
  • Atomic weight: 126.904
  • Dark violet nonmetallic element, belongs to group 17 of the periodic table. Insoluble in water. Required as a trace element for living organisms. One stable isotope, I-127 exists, in addition to fourteen radioactive isotopes. Chemically the least reactive of the halogens, and the most electropositive metallic halogen. Discovered in 1812 by Courtois.

Synonyms of 'iodine'

From: Moby Thesaurus

Words containing 'Iodine'