sponge rubber

American  

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.

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Etymology

Origin of sponge rubber

First recorded in 1885–90

Example Sentences

Kneepads, shin guards beneath her stockings, and sponge rubber tucked under her garter belt have not been enough to protect Patty from assorted cuts, bruises and a chipped tooth.

From Time Magazine Archive

For the sake of speed, Patton wears no hip pads, makes do with a piece of sponge rubber over each hipbone.

From Time Magazine Archive

Since long-range flights mean long, fatiguing hours in the air, the ship carries chairs cushioned with sponge rubber and bunks in which unoccupied crew members may rest.

From Time Magazine Archive

Prompt was the answer of a frustrated male: "Bust developers made of sponge rubber."

From Time Magazine Archive

For instantaneously I experienced a startling, flighty giddiness, a sudden loss of weight that made me feel as if my soles were treading on sponge rubber, my shoulders sprouting wings.

From Lighter Than You Think by Bond, Nelson Slade