IODINE
iodine, iodin, atomic number
(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)
Source: WordNet® 3.1
Etymology
Noun
iodine (usually uncountable, plural iodines)
A chemical element (symbol: I) with an atomic number of 53; one of the halogens.
An antiseptic incorporating the element.
Synonym: tincture of iodine
(countable, uncountable, obsolete) An iodide.
Usage notes
Note that the chemical symbol J (not I) is sometimes used in German chemistry texts.
Verb
iodine (third-person singular simple present iodines, present participle iodining, simple past and past participle iodined)
(transitive) to treat with iodine.
Synonym: iodinate
Anagrams
• Idoine
Source: Wiktionary
I"o*dine (; 104), n. Etym: [Gr. iode, iodine. The name was given from
the violet color of its vapor. See Violet, Idyl.] (Chem.)
Definition: 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.
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. 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.
Source: Webster’s Unabridged Dictionary 1913 Edition