noun
a sodium salt of triphosphoric acid used as a builder in soaps and detergents (Freq. 2)
• Hypernyms: ↑builder, ↑detergent builder
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noun : a crystalline salt Na5P3O10 used chiefly as a builder in soaps and detergents, as a sequestering agent, and as a deflocculating agent; penta-sodium triphosphate — not used systematically
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/truy'pol ee fos"fayt/, Chem.
a white powder, Na5P3O10, used as a water softener, sequestering agent, and food additive. Also called sodium triphosphate.
[1940-45; TRI- + POLY- + PHOSPHATE]
Useful english dictionary. 2012.