sodium pyrophosphate
noun
: a crystalline acid salt Na2H2P2O7 of pyrophosphoric acid that has been added to hot dogs to give them color
called also sodium acid pyrophosphate
Cite this Entry
“Sodium pyrophosphate.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/sodium%20pyrophosphate. Accessed 26 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share