iodide
Americannoun
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a salt of hydriodic acid consisting of two elements, one of which is iodine, as sodium iodide, NaI.
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a compound containing iodine, as methyl iodide.
noun
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a salt of hydriodic acid, containing the iodide ion, I –
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a compound containing an iodine atom, such as methyl iodide, CH 3 I
Other Word Forms
Etymology
Origin of iodide
First recorded in 1815–25; iod- + -ide ( def. )
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In this case, the researchers slightly rotated two stacked bilayers of chromium iodide relative to one another.
From Science Daily ● Feb. 13, 2026
It runs the nation’s biggest such program, with 187 ground generators that send silver iodide into clouds.
From The Wall Street Journal ● Dec. 4, 2025
Cloud seeding involves spraying particles such as silver iodide and salt into clouds from aircraft to trigger rain.
From Barron's ● Nov. 16, 2025
On Tuesday, authorities used a Cessna aircraft to release fire flares containing silver iodide and sodium chloride into the atmosphere.
From BBC ● Oct. 29, 2025
But in the event of a nuclear accident, people who may be exposed to iodine 131 can take potassium iodide tablets, which provide enough non-radioactive iodine 127 to saturate the thyroid.
From "Meltdown" by Deirdre Langeland
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
