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striation

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stri⋅a⋅tion

  [strahy-ey-shuhn]
Use striation in a Sentence
–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, esp. of voluntary muscles, and are produced by the distribution of contractile proteins.
Origin:
1840–50; striate + -ion
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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stri·a·tion   (strī-ā'shən)   
n.  

  1. The state of being striated or having striae.

  2. 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.

  3. The form taken by striae.

  4. A stria.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

striation 
1849, from Mod.L. stria "strip, streak," in classical L. "furrow, channel, flute of a column;" cognate with Du. striem, O.H.G. strimo, Ger. strieme "stripe, streak," from PIE base *streig- (see strigil).
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: stri·a·tion
Pronunciation: strI-'A-sh&n
Function: noun
1 : the fact or state of being striated
2 : a minute groove, scratch, or channel especially when one of a parallel series
3 : any of the alternate dark and light cross bands of a myofibril of striated muscle
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

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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Science Dictionary
striation   (strī-ā'shən)  Pronunciation Key 
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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