polybutadiene

[pol-ee-byoo-tuh-dahy-een, -dahy-een]

noun Chemistry.

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. 2019