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striation

[strahy-ey-shuh n] /straɪˈeɪ ʃən/
noun
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
1840-1850
1840-50; striate + -ion
Related forms
interstriation, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for striations
  • Ancient drums and electronic striations, and flashes of full-tilt swing.
  • Using scratches in schoolyard pavement to explain the concept of glacial striations.
  • The leaf blade has perceivable to invisible transverse pigmented striations.
  • These glacial striations are carved in the top of a columnar-jointed basalt lava flow.
British Dictionary definitions for striations

striation

/straɪˈeɪʃən/
noun
1.
an arrangement or pattern of striae
2.
the condition of being striate
3.
another word for stria (sense 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
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Word Origin and History for striations

striation

n.

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
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striations in Medicine

striation stri·a·tion (strī-ā'shən)
n.

  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.
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striations in Science
striation
  (strī-ā'shən)   
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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