• synonyms


[strahy-ey-shuh n]
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  1. striated condition or appearance.
  2. a stria; one of many parallel striae.
  3. Geology. any of a number of scratches or parallel grooves on the surface of a rock, resulting from the action of moving ice, as of a glacier.
  4. Cell Biology. any of the alternating light and dark crossbands that are visible in certain muscle fibers, especially of voluntary muscles, and are produced by the distribution of contractile proteins.
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Origin of striation

First recorded in 1840–50; striate + -ion
Related formsin·ter·stri·a·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for striation


  1. an arrangement or pattern of striae
  2. the condition of being striate
  3. another word for stria (def. 1)
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for striation


1849, from Modern Latin stria "strip, streak," in classical Latin "furrow, channel, flute of a column;" cognate with Dutch striem, Old High German strimo, German strieme "stripe, streak," from PIE root *streig- (see strigil).

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Online Etymology Dictionary, © 2010 Douglas Harper

striation in Medicine


  1. The state of being striated or having striae.
  2. A stria.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

striation in Science


  1. One of multiple, usually parallel grooves or scratches on a rock surface, produced by abrasion associated with glacial movement, stream flow, a geologic fault, or meteoric impact. See more at glacial striation shatter cone slickenside.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.