[ pol-ee-byoo-tuh-dahy-een, -dahy-een ]
/ ˌpɒl iˌbyu təˈdaɪ in, -daɪˈin /
a rubberlike polymer of butadiene blended with other synthetics to replace natural rubber in tires.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020