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any of various elastic materials that resemble rubber (resumes its original shape when a deforming force is removed)

any of various elastic materials that resemble rubber (resumes its original shape when a deforming force is removed)

A generic term for all substances having the properties of natural, reclaimed, vulcanized, or synthetic rubber, in that they stretch under tension, have a high tensile strength, retract rapidly, and recover their original dimensions fully.