Definition of caffeine in English:
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.
- They have a similar effect to tea or coffee, since they contain the same alkaloid, caffeine.
- In flowering plant pollen tubes, caffeine disrupts vesicle zonation at the tip and stops elongation.
Mid 19th century: from French caféine, from café 'coffee'.
Words that rhyme with caffeineDelphine • Josephine
Definition of caffeine in:
- British & World English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Canada
Most popular in Australia
Most popular in Malaysia
Most popular in Pakistan