What does caffeine mean?
Caffeine means An alkaloid, C₈H₁₀N₄O₂, found naturally in tea and coffee plants, which acts as a mild stimulant on the central nervous system..
Caffeine
/ˈkæfiːn/ · noun
Meaning
An alkaloid, C₈H₁₀N₄O₂, found naturally in tea and coffee plants, which acts as a mild stimulant on the central nervous system..
Example Sentences
For example, 0.100 grams of caffeine yield by combustion, by weight, 0.180 grammes of carbonic acid.
Hitherto, in consequence of its slight solubility, caffeine has been administered hypodermically only in very small doses ; in fact, at the ordinary temperature, it requires 93 parts of water to dissolve, so that a cubic centimeter would contain scarcely more than a centigram.
The US Food and Drug Administration defines this limit as anything more than 400 milligrams of caffeine daily for healthy adults. This is equivalent to four or five cups of coffee.
Synonyms for caffeine
Antonyms for caffeine
Related Words
Word Forms
- caffeines
- caffein
Usage Notes
Choose a synonym only when it preserves the intended meaning, tone, and grammar of the full sentence.
Practice and Learn More
Frequently Asked Questions
What is a synonym for caffeine?
Common synonyms include caffein.
What is the opposite of caffeine?
The opposite depends on the specific sense.
How do you use caffeine in a sentence?
For example, 0.100 grams of caffeine yield by combustion, by weight, 0.180 grammes of carbonic acid.
Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.