You know what it looks like… but what is it called?
TAKE THE QUIZ“hypophosphoric”
We have one entry that includes the term hypophosphoric.
hypophosphoric acid
noun: an unstable acid H4P2O6 with four replaceable hydrogen atoms that is usually obtained in the form of its salts
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- Before we went to her house, Hannah told us her aunt was a flibbertigibbet.


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Merriam-Webster unabridged