volcanic ash
Americannoun
Etymology
Origin of volcanic ash
First recorded in 1790–1800
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.
One especially noticeable blue-black patch in the rougher section of the valley is believed to be volcanic ash that was later redistributed by Martian winds, as seen in the accompanying 3D perspective views.
From Science Daily • May 15, 2026
Scientists were able to determine the age of the fossils because they were preserved between two distinct layers of volcanic ash inside the cave.
From Science Daily • Mar. 26, 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
The animals had been found buried under volcanic ash up to ten feet deep.
From "A Short History of Nearly Everything" by Bill Bryson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
