GR-S

noun

¦jēˌär¦es

variants or less commonly GR-S rubber

: any of a class of general-purpose synthetic rubbers that are made by copolymerizing emulsions of butadiene and styrene commonly at a temperature of either 122° F or 41° F and that are used especially in tires see cold rubber

Word History

Etymology

g overnment r ubber + s tyrene

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now