The spelling of the word "piturine" can be explained using the International Phonetic Alphabet (IPA). The first syllable "pi" is pronounced /pɪ/, with a short "i" sound. The second syllable "tu" is pronounced /tju/, with a combination of the "t" and "y" sounds. Finally, the last syllable "rine" is pronounced /raɪn/, with a long "i" sound and a silent "e". Therefore, the complete pronunciation of "piturine" is /ˈpɪtjuˌraɪn/.
A liquid alkaloid, C12H16N2, resembling nicotine, obtained from pituri, the leaves of Duboisea hopwoodii, used by the Australian aborigines in the same way as tobacco.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.