guaraná
noun [ U ] (also guarana) uk/ɡwəˈrɑː.nə/ us/ɡwəˈrɑː.nə/
(巴西) 瓜拉那（植物）
a plant common in Brazil that has seeds containing a large amount of caffeine
(巴西) 瓜拉那提取物
a substance made from the seeds of the guarana plant, used in drinks and pills that are said to give you energy