volcanic ash

American  

noun

Geology.

1. ash.

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Etymology

Origin of volcanic ash

First recorded in 1790–1800

Example Sentences

The approach could improve predictions of how pollution spreads through cities, how wildfire smoke or volcanic ash travels through the atmosphere, and how engineered nanoparticles behave in industrial and medical applications.

From Science Daily • Feb. 8, 2026

The results showed that the eggshells could be dated with an accuracy of about five percent when compared with ages determined from volcanic ash layers.

From Science Daily • Dec. 21, 2025

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

There has also been a massive development programme in the monitoring and forecasting of volcanic ash.

From BBC • Apr. 15, 2025

The wind carried volcanic ash and forest fire ash and ash that no one wanted to identify down the slope of the mountain and deposited it in the streets.

From "The Girl Who Drank the Moon" by Kelly Barnhill