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.

First recorded in 1885–90

He felt the situation was as penetrable as a thick wall of sponge rubber backed by a ten-foot foundation of steel.

His gait was a little awkward, in spite of the sponge-rubber floor, because of the huge flowered carpetbag he was carrying.

A red rubber or a sponge rubber is much better than an India rubber eraser.

April 23, 2024inveterate

[in-vet-er-it ]

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