striation
noun
stri·a·tion strī-ˈā-shən 
1
a
: the fact or state of being striated
b
: arrangement of striations or striae
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
Example Sentences
Recent Examples on the Web Bite marks included punctures, scores, furrows, pits and striations, marks in which the individual denticles of a serrated tooth leave subscores on bone surfaces. 
Kristen Rogers, CNN, 27 May 2020 Band of Brothers Slope-ready sweaters whose varying degrees of striation echo Mr. Redford’s pullover. Todd Plummer, WSJ, 4 Feb. 2020 Leave the striations of fatty goodness within the chunks of meat, but trim the outer caps of fat so that there only is a light layer left. Emily Spicer, ExpressNews.com, 15 Apr. 2020 Every spring, the peacock-bright feathered striations surprise her: magenta twisted with antique white, tangerine and black exploding into hot pink, violet tinged with butterscotch. Nancy Hass, New York Times, 24 Feb. 2020 Leo’s version comes in a fluted glass tumbler that showcases its appealingly messy striations, as spoonable as pudding. Hannah Goldfield, The New Yorker, 31 Jan. 2020 The standard method is to view pairs of bullets side by side under a split-screen microscope to see if the striations line up. Jennifer Ouellette, Ars Technica, 30 Dec. 2019 The jack-o’-lantern face has moving green flames pouring from the eyes, nose and mouth, a broad, grinning mouth, a long, prominent stem that curves, and dark striations delineating the segments of the pumpkin giving it a yellow-and-orange design. Ashley Cullins, The Hollywood Reporter, 9 Dec. 2019 The blood had striations in it like it'd been pushed with a push broom, an attempt at clean up. Peter Van Sant, CBS News, 16 Nov. 2019 See More
Kristen Rogers, CNN, 27 May 2020 Band of Brothers Slope-ready sweaters whose varying degrees of striation echo Mr. Redford’s pullover. Todd Plummer, WSJ, 4 Feb. 2020 Leave the striations of fatty goodness within the chunks of meat, but trim the outer caps of fat so that there only is a light layer left. Emily Spicer, ExpressNews.com, 15 Apr. 2020 Every spring, the peacock-bright feathered striations surprise her: magenta twisted with antique white, tangerine and black exploding into hot pink, violet tinged with butterscotch. Nancy Hass, New York Times, 24 Feb. 2020 Leo’s version comes in a fluted glass tumbler that showcases its appealingly messy striations, as spoonable as pudding. Hannah Goldfield, The New Yorker, 31 Jan. 2020 The standard method is to view pairs of bullets side by side under a split-screen microscope to see if the striations line up. Jennifer Ouellette, Ars Technica, 30 Dec. 2019 The jack-o’-lantern face has moving green flames pouring from the eyes, nose and mouth, a broad, grinning mouth, a long, prominent stem that curves, and dark striations delineating the segments of the pumpkin giving it a yellow-and-orange design. Ashley Cullins, The Hollywood Reporter, 9 Dec. 2019 The blood had striations in it like it'd been pushed with a push broom, an attempt at clean up. Peter Van Sant, CBS News, 16 Nov. 2019 See More Word History
First Known Use
circa 1847, in the meaning defined at sense 1a
Medical Definition
striation
noun
stri·a·tion strī-ˈā-shən
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