What does iodine mean?

Definitions for iodineˈaɪ əˌdaɪn, -dɪn; in Chem. also -ˌdin; -dɪn

Here are all the possible meanings and translations of the word iodine.

Princeton's WordNet

  1. iodine, iodin, I, atomic number 53(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)

  2. tincture of iodine, iodine(noun)

    a tincture consisting of a solution of iodine in ethyl alcohol; applied topically to wounds as an antiseptic


  1. iodine(Noun)

    A chemical element (symbol: I) with an atomic number of 53; one of the halogens.

  2. iodine(Noun)

    An antiseptic incorporating the element.

  3. iodine(Noun)

    An iodide.

  4. Origin: From iode, from ἰοειδής + -ine

Webster Dictionary

  1. Iodine(noun)

    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

  2. Origin: [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.]


  1. Iodine

    Iodine is a chemical element with symbol I and atomic number 53. The name is from Greek ἰοειδής ioeidēs, meaning violet or purple, due to the color of elemental iodine vapor. Iodine and its compounds are primarily used in nutrition, and industrially in the production of acetic acid and certain polymers. Iodine's relatively high atomic number, low toxicity, and ease of attachment to organic compounds have made it a part of many X-ray contrast materials in modern medicine. Iodine has only one stable isotope. A number of iodine radioisotopes are also used in medical applications. Iodine is found on Earth mainly as the highly water-soluble iodide ion, I−, which concentrates it in oceans and brine pools. Like the other halogens, free iodine occurs mainly as a diatomic molecule I2, and then only momentarily after being oxidized from iodide by an oxidant like free oxygen. In the universe and on Earth, iodine's high atomic number makes it a relatively rare element. However, its presence in ocean water has given it a role in biology. It is the heaviest essential element utilized widely by life in biological functions. Iodine's rarity in many soils, due to initial low abundance as a crust-element, and also leaching of soluble iodide by rainwater, has led to many deficiency problems in land animals and inland human populations. Iodine deficiency affects about two billion people and is the leading preventable cause of intellectual disabilities.

Chambers 20th Century Dictionary

  1. Iodine

    ī′o-din, n. one of the four non-metallic elements, so named from the violet colour of its vapour.—n. I′odāte, a combination of iodic acid with a salifiable base.—adj. Iod′ic, containing iodine.—n. I′odīde, a binary compound of iodine.—adj. Iodif′erous, yielding iodine.—n. I′odism, a morbid condition due to iodine.—v.t. I′odīze, to treat with iodine: to impregnate with iodine, as collodion.—n. Iod′oform, a lemon-yellow crystalline substance, having a saffron-like odour and an unpleasant iodine-like taste.—adj. Iodomet′ric (chem.), measured by iodine.—ns. I′odure, Iod′ūret, a compound of iodine with a simple base; Iod′yrite, a yellowish mineral composed of iodine and silver. [Gr. ioeidēs, violet-coloured—ion, a violet, eidos, form.]

The Nuttall Encyclopedia

  1. Iodine

    a non-metallic element originally obtained from kelp, but now found in South America in combination with sodium, used largely both free and in combination in medicine and surgery, in photography, and in making aniline dyes.

U.S. National Library of Medicine

  1. Iodine

    A nonmetallic element of the halogen group that is represented by the atomic symbol I, atomic number 53, and atomic weight of 126.90. It is a nutritionally essential element, especially important in thyroid hormone synthesis. In solution, it has anti-infective properties and is used topically.

Editors Contribution

  1. iodine

    Is a chemical element.

    Iodine is a constituent of the thyroid hormone in the human body and is required in small amounts.

Suggested Resources

  1. iodine

    Song lyrics by iodine -- Explore a large variety of song lyrics performed by iodine on the Lyrics.com website.


  1. Chaldean Numerology

    The numerical value of iodine in Chaldean Numerology is: 5

  2. Pythagorean Numerology

    The numerical value of iodine in Pythagorean Numerology is: 2

Sample Sentences & Example Usage

  1. Katherine Zeratsky:

    Without the iodized salt, there are some people who may not get enough iodine in their diets.

  2. Ashita Gupta:

    Worldwide, iodine deficiency is one of the causes ofan enlarged thyroid glandand hypothyroidism, however, iodine deficiency is rare in developed countries due to supplementation in table salt and certain foods such as dairy and bread.

Images & Illustrations of iodine

  1. iodineiodineiodine

Translations for iodine

From our Multilingual Translation Dictionary

Get even more translations for iodine »


Find a translation for the iodine definition in other languages:

Select another language:

Discuss these iodine definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:     


Use the citation below to add this definition to your bibliography:


"iodine." Definitions.net. STANDS4 LLC, 2018. Web. 18 Feb. 2018. <https://www.definitions.net/definition/iodine>.

Are we missing a good definition for iodine? Don't keep it to yourself...

Nearby & related entries:

Alternative searches for iodine:

Thanks for your vote! We truly appreciate your support.