polyolefin

American

[pol-ee-oh-luh-fin] / ˌpɒl iˈoʊ lə fɪn /

noun

Chemistry.

any of a group of thermoplastic, stiff, light, and hard polymers obtained from the polymerization of simple olefins like propylene, used for injection molding, mostly in the automotive and appliance industries.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023