Definition Of caffeine
a crystalline compound that is found especially in tea and coffee plants and is a stimulant of the central nervous system.
The stimulant effects of caffeine in coffee are well known to help improve energy and alertness.
Example Of caffeine
A good dose of caffeine stimulated just the right amount of thought, he figured.
A tea or coffee plant can probably grow perfectly well without caffeine .
Also, try to avoid drinking too much tea and coffee as caffeine can increase anxiety levels.
Copious quantities of caffeine and alcohol will stimulate the production of urine, so keep them to a minimum.
Decaffenation is the process of removing caffeine from products that contain it.