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sponge rubber

noun
1.
a light, spongy rubber, usually prepared by bubbling carbon dioxide through or whipping air into latex, used for padding, insulation, gaskets, etc.; foam rubber.
Origin of sponge rubber
1885-1890
1885-90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for sponge rubber
Historical Examples
  • He felt the situation was as penetrable as a thick wall of sponge rubber backed by a ten-foot foundation of steel.

    Cubs of the Wolf Raymond F. Jones
  • A red rubber or a sponge rubber is much better than an India rubber eraser.

    Library Bookbinding Arthur Low Bailey

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Difficulty index for sponge rubber

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Word Value for sponge

9
12
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