caffein

Meanings

nouncaffein (usually uncountable, plural caffeins)

nouna bitter alkaloid found in coffee and tea that is responsible for their stimulating effects

Similar

Broader

Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry

APA

caffein. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/caffein

MLA

“caffein.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/caffein. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “caffein,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/caffein.

Source: caffein on Wiktionary, CC BY-SA 4.0.