- one of a series of small wavy ridges of sand formed by waves on a beach, by a current in a sandy riverbed, or by wind on land: sometimes found fossilized on bedding planes of sedimentary rock
| 单词 | ripple mark |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 rip′ple mark′, [Geol.]
Collins Concise English Dictionary © HarperCollins Publishers:: ripple mark n
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