{Nitric acid}, a colorless or yellowish liquid obtained by
distilling a nitrate with sulphuric acid. It is powerfully
corrosive, being a strong acid, and in decomposition a
strong oxidizer.
{Nitric anhydride}, a white crystalline oxide of nitrogen
({N2O5}), called {nitric pentoxide}, and regarded as the
anhydride of nitric acid.
{Nitric oxide}, a colorless poisous gas ({NO}) obtained by
treating nitric acid with copper. On contact with the air
or with oxygen, it becomes reddish brown from the
formation of nitric dioxide or peroxide.