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sponge rubber
noun
- a light, spongy rubber, usually prepared by bubbling carbon dioxide through or whipping air into latex, used for padding, insulation, gaskets, etc.; foam rubber.
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Word History and Origins
Origin of sponge rubber1
First recorded in 1885–90
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Example Sentences
He felt the situation was as penetrable as a thick wall of sponge rubber backed by a ten-foot foundation of steel.
From Project Gutenberg
His gait was a little awkward, in spite of the sponge-rubber floor, because of the huge flowered carpetbag he was carrying.
From Project Gutenberg
A red rubber or a sponge rubber is much better than an India rubber eraser.
From Project Gutenberg
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