hypophosphoric acid

noun
hy·​po·​phos·​phor·​ic acid | \ -fäs-ˌfȯr-ik- , -ˌfär- , -ˌfäs-f(ə-)rik-\

Medical Definition of hypophosphoric acid

: an unstable acid H4P2O6 with four replaceable hydrogen atoms that is usually obtained in the form of its salts

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