silver iodide

American  

noun

Chemistry.

1. a pale-yellow, water-insoluble solid, AgI, which darkens on exposure to light: used chiefly in medicine, photography, and artificial rainmaking.

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silver iodide British  

noun

1. a yellow insoluble powder that darkens on exposure to light: used in photography and artificial rainmaking. Formula: AgI

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silver iodide Scientific  

1. A pale-yellow, odorless powder that darkens when it is exposed to light. It is used in photography, as an antiseptic in medicine, and in cloud seeding. Chemical formula: AgI.

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Etymology

Origin of silver iodide

First recorded in 1905–10

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

From Barron's

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

On Tuesday, authorities used a Cessna aircraft to release fire flares containing silver iodide and sodium chloride into the atmosphere.

From BBC

The team flew its plane to an elevation of 1,600 feet and dispersed about 70 grams of silver iodide into the clouds — an amount smaller than a handful of Skittles, Doricko said.

From Los Angeles Times