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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.


silver iodide British  

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.


Etymology

Origin of silver iodide

First recorded in 1905–10

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.

See Examples For:

A single layer of silver iodide was placed between two sheets of graphene, forming a protective "sandwich."

From Science Daily Jan. 26, 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 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

On the other hand, as much silver nitrate is required to give the yellow turbidity due to silver iodide as would be required if no zinc were present.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius

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