[strahy-ey-shuh n]
See more synonyms for striation on
  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.

Origin of striation

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

Examples from the Web for striation

Historical Examples of striation

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)
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).

Online Etymology Dictionary, © 2010 Douglas Harper

striation in Medicine


  1. The state of being striated or having striae.
  2. A stria.
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.