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Related to Guaranine: Guarana, Paullinia cupana


n.1.(Chem.) An alkaloid extracted from guarana. Same as Caffeine.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
"They have lots of sugar and caffeine, but also taurine, an amino acid, guaranine (from a South American plant), another source of caffeine, and they sometimes have vitamins.
They contain guaranine, taurine, vitamin B3 and vitamin B6 etc which are the daily required elements for human body, which can immediately quench one's thirst, replenish energy and boost power and is suitable for pre- and post- sports, working class, people with high activity level and students.
Ravel also explained the scientific definition of the stimulating molecules, noting that whilst most people will simply call them all caffeine, others will insist on some subtle differences, which require the distinctive denominations of caffeine for coffee, theine for tea, mateine for mate and guaranine for guarana.