Definition
caffeine
noun
- a bitter white crystalline compound found in coffee, tea, and other plants that acts as a stimulant to the central nervous system
Examples
- I need my morning coffee for the caffeine boost.
- Green tea contains less caffeine than black coffee.
- She avoided caffeine after 3 PM to sleep better.
- The energy drink had 200 milligrams of caffeine.
- Chocolate contains small amounts of caffeine.
- He switched to decaf to reduce his caffeine intake.
- Too much caffeine can cause jitters and anxiety.