noun
: a flammable yellow crystalline compound P 4 S 3 used chiefly in the manufacture of matches; tetra-phosphorus trisulfide — not used systematically
noun
: a flammable yellow crystalline compound P 4 S 3 used chiefly in the manufacture of matches; tetra-phosphorus trisulfide — not used systematically
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012