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surficial

[ser-fish-uh l]
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adjective
  1. of or relating to a surface, especially the land surface: a surficial geologic deposit.

Origin of surficial

1890–95; blend of surface and superficial
Related formssur·fi·cial·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for surficial

Historical Examples

  • The zinc oxide minerals in the surficial zone also are sometimes colored yellow by small amounts of greenockite.

    The Economic Aspect of Geology

    C. K. Leith

  • My foot-rule, my rough scale plans and piled-up figures of cubic capacity and surficial area carried all before them.

    A Floating Home

    Cyril Ionides

  • Surficial, sur-fish′al, adj. formed on the surface, as opposed to Subterranean.