◎ 咖啡因 kāfēiyīn
[caffeine;theine] 又名“咖啡碱”

1.caffeine
2.【化】 caffeine; guaranine; methyl theobromine; psoraline; theine
3.【医】 caffeine; coffeinum; methyltheobromine; psoraline; trimethyl xanthine
4.trimethylxanthine