tetraboric acid

noun
tet·​ra·​bo·​ric acid | \ -ˌbō-rik- How to pronounce tetraboric acid (audio) \

Medical Definition of tetraboric acid

: a dibasic acid H2B4O7 containing four atoms of boron in a molecule, formed by heating ordinary boric acid, and known especially in the form of its salts (as borax)

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