theophylline
/ˌθiːəˈfɪliːn/noun
mass noun
- Chemistry a bitter crystalline compound present in small quantities in tea leaves, isomeric with theobromine【化】茶碱。
词源
late 19th cent.: from modern Latin Thea （former genus name of the tea plant， from Dutch thee） + Greek phullon 'leaf' + -INE4.