Pyrophone :: Pyrophone (n.) A musical instrument in which the tones are produced by flames of hydrogen, or illuminating gas, burning in tubes of different sizes and lengths..

Pyrophoric :: Pyrophoric (a.) Alt. of Pyrophorou.

Pyrophorous :: Pyrophorous (a.) Light-producing; of or pertaining to pyrophorus.

Pyrophorus :: Pyrophorus (n.) Any one of several substances or mixtures which phosphoresce or ignite spontaneously on exposure to air, as a heated mixture of alum, potash, and charcoal, or a mixture of charcoal and finely divided lead..

Pyrophosphate :: Pyrophosphate (n.) A salt of pyrophosphoric acid.

Pyrophosphoric :: Pyrophosphoric (a.) Pertaining to, or designating, an acid, H4P2O7, which is obtained as a white crystalline substance. Its salts are obtained by heating the phosphates..

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