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expanded plastic

plastic that is made light and spongy by the introduction of pockets of gas or air.
Origin of expanded plastic
1940-45 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for expanded plastic
  • Some houses contain a litter floor with a ramp leading up to raised-wire or expanded plastic flooring over a shallow pit.
  • Traps made with an expanded plastic trigger are much more effective than those with a small metal trigger.
  • The expanded plastic forced its way into connecting pipes, where it solidified and plugged the inlet to the vent line.

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