Etymology
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striation (n.)

1849, "a parallel streak," noun of action from striate (v.).

updated on December 08, 2013

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Definitions of striation from WordNet

striation (n.)
any of a number of tiny parallel grooves such as: the scratches left by a glacier on rocks or the streaks or ridges in muscle tissue;
Synonyms: stria
striation (n.)
a stripe or stripes of contrasting color;
Synonyms: band / banding / stria
From wordnet.princeton.edu, not affiliated with etymonline.