cloud seeding

noun

1. any technique of adding material to a cloud to alter its natural development, usually to increase or obtain precipitation.

cloud seeding

1. A method of making a cloud give up its moisture as rain, especially by releasing particles of dry ice or silver iodide into cold clouds. Dry ice freezes water droplets in the cloud, turning them into nuclei for the formation of raindrops. Silver iodide particles are used because they have a crystal structure similar to ice and can also serve as nuclei for raindrop formation.

cloud seeding

1. A technique for producing rain by dropping chemicals or small objects into clouds.

Word History and Origins

Origin of cloud seeding¹

First recorded in 1945–50

Example Sentences

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

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Iranian authorities have launched cloud seeding operations to induce rainfall as the country faces its worst drought in decades, state media reported.

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

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Other countries in the region, including the United Arab Emirates, have also used cloud seeding to artificially produce rain.

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India's efforts to combat air pollution by using cloud seeding in its sprawling capital New Delhi appear to have fallen flat, with scientists and activists questioning the effectiveness of the move.

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