Rubber latex processed into a spongelike substance.
- By 1944, external prosthesis of sponge rubber for women suffering from atrophy or absence of the breast was recommended to surgeons in the Archives of Surgery.
- He outfitted Natalia with a pair of swimmer's goggles, the lenses blocked by sponge rubber and aluminum foil.
- His reappearance at the fall of the eighth wicket, finger encased in enough sponge rubber and plastic to protect a Ming vase, was almost the final barrier to England's progress to a second successive victory in the series.
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Syllabification: sponge rub·ber
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