n. a crystalline, bitter-tasting alkaloid of plant-based origin. It belongs to the methylxanthine group which is known to have stimulating effects. Thus, as a stimulant, it promotes rapid breathing and increases heart rate.

CAFFEINE: "Caffeine is a substance which helps give coffee its distinct flavor and aroma."
Cite this page: N., Pam M.S., "CAFFEINE," in, April 7, 2013, (accessed September 27, 2021).