metaphosphoric acid

noun
meta·​phos·​pho·​ric acid | \-ˌfäs-ˈfȯr-ik-, -ˈfär-;-ˈfäs-f(ə-)rik-\

Definition of metaphosphoric acid 

: a glassy solid acid HPO3 or (HPO3)n formed by heating orthophosphoric acid

First Known Use of metaphosphoric acid

1833, in the meaning defined above

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The first known use of metaphosphoric acid was in 1833

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metaphosphoric acid

noun
meta·​phos·​pho·​ric acid | \ˌmet-ə-ˌfäs-ˌfȯr-ik-, -ˌfär-; -ˌfäs-f(ə-)rik- \

Medical Definition of metaphosphoric acid 

: a glassy solid acid HPO3 or (HPO3)n formed by heating orthophosphoric acid but usually obtained in the form of salts

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