- drop + stone (Wiktionary)
“First, they have a variety of data flags, including flags for turbidity, earthquake, drainage event, and dropstone, indicating that the particular data point is not to be used.”
“The dropstone group gathered a 150 graduation speeches together and attempted to code and extract "meta-advice" by combining the insights together.”
“PS I mapped a few thousand sq miles of late Precambrian in the Richtersveld, just inside South Africa years ago, which was older than the Nama and included the Numees tillite in which I found a stromatolite in associated dolomite, and also a dropstone and varves.”
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