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foam rubber

a light, spongy rubber, used for mattresses, cushions, etc.
Origin of foam rubber
1940-45 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for foam rubber
Historical Examples
  • It was wide and hard, foam rubber over steel, and he kneaded it, digging his fingers in.

    Makers Cory Doctorow
  • It's all foam rubber, nylon braid supports and magnesium tubing.

    The Dope on Mars John Michael Sharkey
  • Instead of fiber, the floor seemed to have been covered a foot deep with foam rubber.

    Pagan Passions Gordon Randall Garrett
  • Cochrane lay down in a contour-chair with an eight-inch mattress of foam rubber.

    Operation: Outer Space William Fitzgerald Jenkins

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