Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of pyrosulphuric is as below...

Disulphate :: Disulphate (n.) A salt of disulphuric or pyrosulphuric acid; a pyrosulphate.

Pyrosulphuric :: Pyrosulphuric (a.) Pertaining to, or designating, an acid called also disulphuric acid) obtained by distillation of certain sulphates, as a colorless, thick, oily liquid, H2S2O7 resembling sulphuric acid. It is used in the solution of indigo, in the manufacture of alizarin, and in dehydration..

Pyrosulphate :: Pyrosulphate (n.) A salt of pyrosulphuric acid.

Pyr- :: Pyr- () Combining forms designating fire or heat; specifically (Chem.), used to imply an actual or theoretical derivative by the action of heat; as in pyrophosphoric, pyrosulphuric, pyrotartaric, pyrotungstic, etc..

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