io·​dide | \ ˈī-ə-ˌdīd How to pronounce iodide (audio) \

Definition of iodide

: a salt of hydriodic acid also : the monovalent anion I of such a salt

Examples of iodide in a Sentence

Recent Examples on the Web Make your own rinse by combining three teaspoons of iodide-free salt with one teaspoon of baking soda, and then using one teaspoon of that mixture with eight ounces of water, the AAAAI recommends. Marygrace Taylor, SELF, 9 Mar. 2022 Potassium iodide can prevent the thyroid gland from absorbing radioactive iodine and thus protect against injury, according to the U.S. Centers for Disease Control and Prevention. Megan Cerullo, CBS News, 9 Mar. 2022 Cloud-seeding works on the principle that the iodide attracts water droplets. Washington Post, 24 Jan. 2022 Face creams often contain mercury salts, but the woman’s toiletry item contained much stronger methylmercury iodide. Los Angeles Times, 13 Sep. 2019 Spooked residents rushed to buy iodide, which can help limit the damage from exposure to radiation. Washington Post, 12 Aug. 2019 The chemistry used for the battery is zinc iodide, which was chosen for a combination of high energy density (in theory, up to half that of current lithium-ion batteries), neutral pH, and low viscosity (important for a hydraulic fluid). John Timmer, Ars Technica, 19 June 2019 Nataliyamalikite consists of a nearly cubic arrangement of equal parts thallium and iodine atoms, to form thallium iodide crystals. Sophia Chen, WIRED, 1 July 2019 Shepherd and his team, who have applied for a patent on their design, used what’s called zinc iodide redox flow batteries, which have a liquid electrolyte solution in them that acts as an energy reserve. Emily Toomey, Smithsonian, 19 June 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'iodide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of iodide

1822, in the meaning defined above

History and Etymology for iodide

iod(ine) + -ide

Learn More About iodide

Dictionary Entries Near iodide

iodic anhydride



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Statistics for iodide

Cite this Entry

“Iodide.” Dictionary, Merriam-Webster, Accessed 27 May. 2022.

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More Definitions for iodide


io·​dide | \ ˈī-ə-ˌdīd How to pronounce iodide (audio) \

Medical Definition of iodide

: a salt of hydriodic acid also : the monovalent anion I of such a salt

More from Merriam-Webster on iodide

Nglish: Translation of iodide for Spanish Speakers Encyclopedia article about iodide


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