GR-S

\\|jēˌär|es\ noun also GR-S rubber

Etymology: government rubber + styrene

: 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

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GR-S «JEE AHR EHS», noun.

a rubber produced by the copolymerization of butadiene and styrene.

╂[< g(overnment) r(ubber), s(tyrene)]