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diachronism

/ (daɪˈækrəˌnɪzəm) /
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noun
geology the passage of a geological formation across time planes, as occurs when a marine sediment laid down by an advancing sea is noticeably younger in the direction of advancement
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Derived forms of diachronism

diachronous, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use diachronism in a sentence

  • Nor would their diachronism be more certainly inferrible from the physical traces of them, in the one case than in the other.

    Omphalos|Philip Henry Gosse
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