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subcrustal

[suhb-kruhs-tl] /sʌbˈkrʌs tl/
adjective, Geology.
1.
situated or occurring below the crust of the earth.
Origin of subcrustal
1895-1900
1895-1900; sub- + crustal
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for subcrustal
Historical Examples
  • It is perhaps from such a subcrustal layer that the lava of volcanoes is supplied.

    The Elements of Geology William Harmon Norton

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