from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Caffeine extracted from guarana.
from the GNU version of the Collaborative International Dictionary of English
- n. An alkaloid extracted from guarana. Same as caffeine.
Caffeine is also called guaranine when found in guarana, mateine when found in mate, and theine when found in tea; all of these names are synonyms for the same chemical compound.
The guaranine will hype you up a lot and is almost identical to caffeine, although with far less of the jittery reaction too much coffee can create and more euphoria.
Guarana contains a high amount of guaranine, a chemical substance with the same characteristics as caffeine.
Because guaranine is chemically equivalent to caffeine, guaraná is of interest for its potential effects on cognition.