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

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

Cloud seeding involves injecting chemical salts including silver or potassium iodide into clouds via aircraft or through generators on the ground.

From BBC

Cloud seeding involves spraying particles such as silver iodide and salt into clouds from aircraft to trigger rain.

From Barron's

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 Literature

While the US Environmental Protection Agency notes "limited" studies suggest silver iodide does not pose an environmental or health risk, it acknowledges the impact of more widespread use is "not known".

From Barron's