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iodine - 7 dictionary results
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i⋅o⋅dine

  [ahy-uh-dahyn, -din; in Chem. also ahy-uh-deen]
Use iodine in a Sentence
–noun Chemistry.
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; atomic weight: 126.904; atomic number: 53; specific gravity: (solid) 4.93 at 20°C.
Also, i⋅o⋅din  [ahy-uh-din] .

Origin:
1814; < F iode (< Gk īdēs, orig. rust-colored, but by folk etym. taken as í(on) violet + -ōdēs -ode 1 ) + -ine 2 ; introduced by H. Davy
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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i·o·dine   (ī'ə-dīn', -dĭn, -dēn')   
n.  
  1. Symbol I2 A lustrous, grayish-black, corrosive, poisonous halogen element having radioactive isotopes, especially I 131, used as a medical tracer and in thyroid disease diagnosis and therapy. Iodine compounds are used as germicides, antiseptics, and dyes. Atomic number 53; atomic weight 126.9045; melting point 113.5°C; boiling point 184.35°C; specific gravity (solid, at 20°C) 4.93; valence 1, 3, 5, 7. See Table at element.
  2. An antiseptic preparation containing iodine in solution, used to treat wounds.

[French iode, iodine (from Greek ioeidēs, violet-colored : ion, violet + -oeidēs, -oid) + -ine2.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Iodine

I"o*dine\ (?; 104), n. [Gr. ? violetlike; ? a violet + ? 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, 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.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Language Translation for : iodine
Spanish: yodo,
German: das Jod,
Japanese: ヨー素
More Translations »

iodine 
1814, formed by British chemist Sir Humphry Davy from Fr. iode "iodine," coined 1812 by Fr. chemist Joseph Louis Gay-Lussac from Gk. ioeides "violet-colored," from ion "violet" + eidos "appearance" (see -oid). So called from the color of the vapor given off when the crystals are heated.
Online Etymology Dictionary, © 2001 Douglas Harper
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Main Entry: io·dine
Pronunciation: 'I-&-"dIn, -&d-&n, -&-"dEn
Function: noun
often attributive 1 : anonmetallic halogen element obtained usually as heavy shining blackish gray crystals and used especially in medicine (as in antisepsis and in the treatment of goiter and cretinism) and in photographyand chemical analysis —symbol I; —see ELEMENT table
2 : a tincture of iodine usedespecially as a topical antiseptic
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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iodine i·o·dine (ī'ə-dīn', -dĭn, -dēn')
n.


  1. Symbol I A poisonous halogen element having compounds used as germicides, antiseptics, and food supplements, with radioactive isotopes, especially I 131, used in thyroid disease diagnosis and therapy. Atomic number 53; atomic weight 126.9045; melting point 113.7°C; boiling point 184.4°C; specific gravity (solid, at 20°C) 4.93; valence 1, 3, 5, 7.
  2. A liquid containing iodine dissolved in ethyl alcohol, used as an antiseptic for wounds.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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iodine   (ī'ə-dīn')  Pronunciation Key 
Symbol I
A shiny, grayish-black element of the halogen group. It is corrosive and poisonous and occurs in very small amounts in nature except for seaweed, in which it is abundant. Iodine compounds are used in medicine, antiseptics, and dyes. Atomic number 53; atomic weight 126.9045; melting point 113.5°C; boiling point 184.35°C; specific gravity (solid, at 20°C) 4.93; valence 1, 3, 5, 7. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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