volcanic ash

American  

noun

Geology.

1. ash.

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Etymology

Origin of volcanic ash

First recorded in 1790–1800

Example Sentences

See Examples For:

volcanic ash

"It is known that volcanoes emit methane during eruptions, but until now it was not known that volcanic ash is also capable of partially cleaning up this pollution," he adds.

From Science Daily ● May 10, 2026

Most well-known fossil sites are found in rocks such as shale, sandstone, limestone, or volcanic ash.

From Science Daily ● Apr. 23, 2026

Their position suggests they were later exposed to heat from lava or volcanic ash after they originally formed.

From Science Daily ● Mar. 10, 2026

Their evidence suggests that volcanic activity around 1345 caused temperatures to drop sharply over consecutive years because of the release of volcanic ash and gases which blocked out some sunlight.

From BBC ● Dec. 4, 2025

Now they had volcanic ash to deal with.

From "The Dead and the Gone" by Susan Beth Pfeffer