Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

pyrophosphoric acid

play
noun py·ro·phos·pho·ric acid \-fäs-ˌfȯr-ik-, -ˌfär-; -ˌfäs-f(ə-)rik-\

Medical Definition of pyrophosphoric acid

  1. :  a crystalline acid H4P2O7 that is formed when orthophosphoric acid is heated or that is prepared in the form of salts by heating acid salts of orthophosphoric acid




Learn More about pyrophosphoric acid


Seen and Heard

What made you want to look up pyrophosphoric acid? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

immature or lacking adult sophistication

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

prompt maudlin angry oily
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ