noun
: a substance (as carbon black or other pigment) used especially in compounding rubber to improve the physical properties (as resilience, toughness, and tensile strength)
noun
: a substance (as carbon black or other pigment) used especially in compounding rubber to improve the physical properties (as resilience, toughness, and tensile strength)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012