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glacial striation

Scientific  

  1. One of several, long, straight, parallel lines or grooves in a bedrock surface, formed by boulders, gravel, and pebbles embedded in a glacier that has passed over the surface.

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Images of falling water, molten lava, glacial striation, swarms and murmurations and eruptions swirl and surge before us, more referential than a typology of nature's randomness.

From The Guardian

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.