# polyphosphate

> English word · Noun

## Definitions
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

## Etymology
From poly- + phosphate.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/polyphosphate