undersurface

[uhn-der-sur-fis]

noun

1. underside; bottom surface.

adjective

1. submerged; under the surface, as of water, earth, etc..

   the undersurface speed of a submarine.

Word History and Origins

Origin of undersurface¹

First recorded in 1725–35; under- + surface

Example Sentences

From “a sample return we will learn much more about habitable conditions in the undersurface liquid water ocean of the moon,” Coustenis says.

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It skittered along the undersurface of the water as if in a parallel world, the kneeling Dr. Gould beneath him.

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When the undersurface of the first tablet was revealed, Dr. White got chills.

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The female Tiphia, finding a beetle grub in the soil, injects a paralyzing fluid and attaches a single egg to the undersurface of the grub.

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The small marks and scars on the undersurface and variation in the trailing edge can be used for individual identification.

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