noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   any of a class of inorganic polymers containing linked phosphate groups; the low molecular weight polymers, such as sodium tripolyphosphate, are used in water softening and as food additives
2. 2
   a salt or ester of polyphosphoric acid wordnet

Etymology

From poly- + phosphate.

Related phrases

ammonium polyphosphatecalcium polyphosphatecalcium sodium polyphosphatediadenosine polyphosphateinositol polyphosphatemagnesium polyphosphatesodium tripolyphosphatefood additiveinorganic polymermolecular weightsodium tripolyphosphatewater softening

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.