Meaning of iodine in English:


Pronunciation /ˈʌɪədiːn/ /ˈʌɪədʌɪn/ /ˈʌɪədɪn/

Translate iodine into Spanish


mass noun
  • 1

    (also I)
    The chemical element of atomic number 53, a non-metallic element forming black crystals and a violet vapour.

    ‘The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine.’
    • ‘The chemical element iodine is a major component of thyroid hormones.’
    • ‘These can be found through the detection of gases such as sulphur dioxide, hydrogen sulphide, and vapours of mercury, iodine, and radon.’
    • ‘Other trace elements such as iodine, uranium, nickel, lead, iron, and lithium also exist in the Dead Sea water.’
    • ‘Dry chlorine, iodine, bromine and fluorine cause little or no corrosion of magnesium at room or slightly elevated temperature.’
    • ‘The most common trace element deficiencies in cattle are copper, selenium, iodine and cobalt.’
    • ‘A similar reaction occurs with bromine but not with iodine or fluorine.’
    • ‘Dried maca root is rich in amino acids, iodine, iron, and magnesium.’
    • ‘Some examples of those that do sublime readily are carbon dioxide and iodine.’
    • ‘Starch granules were visualized upon reaction with iodine/potassium iodine.’
    • ‘The thyroid, a gland in the neck, takes up the element iodine from food that is eaten.’
    • ‘The blasts are caused by chemical reactions within the units which create volatile hydrogen gas, iodine gas or lithium iodine.’
    • ‘Drink only water that you have boiled or treated with chlorine or iodine.’
    • ‘A less expensive option is to treat water with chlorine or iodine, as is typically done with municipal water.’
    • ‘According to international agencies, millions of children suffer from deficiencies of iron, iodine and vitamin A.’
    • ‘Results showed a significant improvement in the iron, iodine and vitamin A status of these children compared to a control group.’
    • ‘Less abundant elements, which are equally necessary for life, include calcium, manganese, iron, and iodine.’
    • ‘A good water filter or purifier and correct usage of iodine or chlorine with knowledge of the time they take can keep you well.’
    • ‘The synthesis of these hormones requires the amino acid tyrosine and the trace mineral iodine.’
    • ‘The importance of studying thyroid function in these children is that the gland can concentrate and bind iodine.’
    the Elder
    1. 1.1A solution of iodine in alcohol, used as a mild antiseptic.
      ‘Identify landmarks and prepare the insertion site with iodine or alcohol solution.’
      • ‘An iodophor/alcohol prep combines the benefits of iodine and alcohol in a water insoluble film.’
      • ‘Apply ethanol, tincture or aqueous solution of iodine, if available.’
      • ‘Norm was instantly on hand with all sorts of potions; antiseptic, iodine, everything.’
      • ‘Povidone-iodine is a solution commonly used if the patient is not allergic to iodine.’
      • ‘A vinegar and water douche is substituted for patients who are sensitive to iodine.’
      • ‘It is indicated for the cleaning of acute and chronic wounds infected/colonized with bacteria sensitive to iodine.’
      • ‘The abdomen of each animal was shaved and prepared with iodine.’
      • ‘Not so long ago, tincture of iodine was one of the most popular of antiseptics.’
      • ‘To prevent the highly infectious scourge, Turner is vigilant about daily hoof cleaning and treatment with iodine.’
      • ‘I sloshed iodine into the bowl I'd brought down, and handed it to Traci.’
      • ‘First off you'll need a scalpel, a bottle of iodine, a protein catalyst solution and a non-corrosive oxidising biophage agent, cotton swabs and a lot of patience.’
      • ‘Doctor Cantor washed clotted black blood from Tribe's face and applied iodine to the cuts.’

A member of the halogen group, iodine occurs chiefly as salts in seawater and brines. As a constituent of thyroid hormones it is required in small amounts in the body, and deficiency can lead to goitre


Early 19th century from French iode (from Greek iōdēs ‘violet-coloured’, from ion ‘violet’ + -eidēs ‘like’) + -ine.