iodide

American  

[ahy-uh-dahyd, -did] / ˈaɪ əˌdaɪd, -dɪd /

noun

Chemistry.

1. a salt of hydriodic acid consisting of two elements, one of which is iodine, as sodium iodide, NaI.

2. a compound containing iodine, as methyl iodide.

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iodide British  

/ ˈaɪəˌdaɪd /

noun

1. a salt of hydriodic acid, containing the iodide ion, I ^–

2. a compound containing an iodine atom, such as methyl iodide, CH 3 I

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iodide Scientific  

/ ī′ə-dīd′ /

1. A chemical compound consisting of iodine together with another element or radical.

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Other Word Forms

• subiodide
  noun

Etymology

Origin of iodide

First recorded in 1815–25; iod- + -ide ( def. )

Compare meaning

How does iodide compare to similar and commonly confused words? Explore the most common comparisons:

• iodide vs. iodine

Example Sentences

See Examples For:

iodide

The process involves spraying particles such as silver iodide and salt into clouds from aircraft to produce rainfall, and is widely used to affect weather patterns or even tamp down air pollution.

From Barron's ● May 8, 2026

The international research group identified a previously unknown magnetic state in a material made of four atomic layers of chromium iodide.

From Science Daily ● Feb. 13, 2026

Invented in 1946 by General Electric scientists in upstate New York, cloud seeding works because silver iodide particles resemble ice crystals.

From The Wall Street Journal ● Dec. 4, 2025

Cloud seeding is done by firing small particles - usually silver iodide - into clouds to produce rain.

From BBC ● Oct. 29, 2025

But maybe his fatigue is exacerbated by the potassium iodide he's taking.

From "Vincent and Theo: The Van Gogh Brothers" by Deborah Heiligman