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subsurface

[suhb-sur-fuh s, suhb-sur-]
See more synonyms for subsurface on Thesaurus.com
adjective
  1. below the surface, especially of a body of water.
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Origin of subsurface

First recorded in 1770–80; sub- + surface
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for subsurface

Historical Examples

  • I'll have the subsurface part, from the sixth floor down, airsealed.

    Omnilingual

    H. Beam Piper

  • At 125th Street and Lenox Avenue one of the most complicated network of subsurface structures was encountered.

  • A number of interesting methods of providing for subsurface structures are shown in photographs pages 51 to 54.

  • It also soon appeared that the German U-boats would not fight our subsurface vessels.

    The Victory At Sea

    William Sowden Sims

  • The submarine has two sets of engines, one for surface travel and the other for subsurface travel.

    The Victory At Sea

    William Sowden Sims