guarana(redirected from guaranas)
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Related to guaranas: Paullinia cupana, Guarana seed extract
1. A shrub or woody vine (Paullinia cupana) of Amazonia whose seeds are high in caffeine and other alkaloids.
2. A preparation made from the seeds of this plant, used in beverages and as an herbal medicine for its stimulant and tonic properties.
[Brazilian Portuguese guaraná, from Tupí *wara'na.]
(Plants) a climbing shrub, Pauinia cupana, that is native to Venezuela and Brazil and whose seeds contain a higher concentration of caffeine than is found in coffee beans