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Definition of "striation" [stri•a•tion]

  • The state of being striated or having striae. (noun)
  • One of a number of parallel lines or scratches on the surface of a rock that were inscribed by rock fragments embedded in the base of a glacier as it moved across the rock. (noun)
  • The form taken by striae. (noun)
  • A stria. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "striation" in a sentence
  • "Long enough to admire the striation of the petals on the lush pink rose on page ninety-two of the fashion magazine I was holding."
  • "But not just any writer — the type who set the whole world on fire with her worlds; a figure who left a striation on literary history, a clear mark of before and after."
  • "At 277 miles long and more than a mile deep, its intricate formations are matched only by the stunning striation of the rock, and by the knowledge that the entire thing was carved out by the Colorado River on a 5-million-year mission."