Nitratian is a term used in geology to refer to a stage in the Cenozoic era. The word is pronounced /naɪˈtreɪʃən/ and is spelled with two syllables: ni-tra-tian. The initial syllable is pronounced with a long "i" sound, followed by a "t" and an "r" sound. The second syllable has a short "a" sound, followed by a "t" and an "i" sound, and finally an "an" sound. Paying attention to phonetic transcriptions can help improve spelling and pronunciation skills.