Pernitrate is an obsolete term that refers to a salt of nitric acid. It is spelled with the prefix "per-" which means "excessive" and the suffix "-ate" which indicates a compound containing oxygen. The pronunciation of pernitrate is /pərˈnaɪtreɪt/ in IPA phonetic transcription. The first syllable is pronounced with a schwa sound, the second with a long "i" sound, and the final syllable with a stressed "ay" sound. This word is not commonly used in modern language and has been replaced by more familiar terms such as nitrates.