caffeine 1
noundomain: substance
Princeton WordNet [ver.3.1]
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EnglishDefinition
a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
Hypernym
alkaloid 1
noun
natural bases containing nitrogen found in plants
anxiogenic 1
noun
An anxiogenic drug: a drug that causes anxiety.
EnglishHyponym
guaranine 1
noun
caffeine derived from the guarana plant.
theine 1
noun
caffeine when present in tea.
