metaphosphoric acid

1. 1.

   a glassy solid acid ([HPO3]n) often used as a dehydrating agent

   Broaderpolyphosphoric acid

Questions about metaphosphoric acid

What does metaphosphoric acid mean?

metaphosphoric acid means "a glassy solid acid ([HPO3]n) often used as a dehydrating agent".

Is metaphosphoric acid a common word?

metaphosphoric acid is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.