striation
If the rock you found on the beach has a deep striation, it means there’s an engraved stripe or groove running across it.
If the word stripes seems too fun and informal for your descriptive needs, you might want to try striations, which is tech talk for the same thing. Striation likes to keep company with other technical words like longitudinal and transverse, more commonly known as lengthwise and across. The Latin root of striation, stria, means “furrow, channel, or flute of a column.”
Definitions of striation
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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
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a stripe or stripes of contrasting color
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types:
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collar
(zoology) an encircling band or marking around the neck of any animal
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stretch mark
a narrow band resulting from tension on the skin (as on abdominal skin after pregnancy)
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collar
Word Family