noun
: rubber recovered from vulcanized scrap rubber (as by grinding old tires and treating with alkali, oils, and plasticizers), often mixed with crude rubber for compounding, and used chiefly in mechanical rubber goods
noun
: rubber recovered from vulcanized scrap rubber (as by grinding old tires and treating with alkali, oils, and plasticizers), often mixed with crude rubber for compounding, and used chiefly in mechanical rubber goods
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012