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.
Origin of sponge rubber
1First recorded in 1885–90
Words Nearby sponge rubber
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use sponge rubber in a sentence
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. JonesHis gait was a little awkward, in spite of the sponge-rubber floor, because of the huge flowered carpetbag he was carrying.
The Foreign Hand Tie | Gordon Randall GarrettA red rubber or a sponge rubber is much better than an India rubber eraser.
Library Bookbinding | Arthur Low Bailey
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