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polybutadiene

[pol-ee-byoo-tuh-dahy-een, -dahy-een]
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noun Chemistry.
  1. a rubberlike polymer of butadiene blended with other synthetics to replace natural rubber in tires.

Origin of polybutadiene

First recorded in 1930–35; poly- + butadiene
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018