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[uhn-der-sur-fis] /ˈʌn dərˌsɜr fɪs/
underside; bottom surface.
submerged; under the surface, as of water, earth, etc.:
the undersurface speed of a submarine.
Origin of undersurface
1725-35; under- + surface Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for undersurface
Historical Examples
  • Until our families can come up from undersurface, it's going to be pretty lonesome, but we'll have to manage.

    The Defenders Philip K. Dick
  • The nest was some forty feet from the ground, on the undersurface of a shelf of rock.

    The Red Dust Murray Leinster
  • There had been a lot of that at first, in the early days before the transfer to undersurface was complete.

    The Defenders Philip K. Dick
  • The undersurface, originally a bright red, turns brown and runs in every direction into a mass of dark stalactites.

    The Life of the Fly J. Henri Fabre
  • He pointed with his antennae to the fluorescent hieroglyphs on the undersurface of the saucer-ship.

    Clean Break Roger Dee
  • undersurface whitish-fawn, the hairs sandy at their bases, whiter terminally.

    Through the Heart of Patagonia H. Hesketh Prichard

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