MW→caffeine

caffeine

EnglishMerriam-Webster Dictionary

caffeine

noun

caf·feine

ka-ˈfēn ˈka-ˌfēn

Definition

a bitter alkaloid C₈H₁₀N₄O₂ found especially in coffee, tea, cacao, and kola nuts and used medicinally as a stimulant and diuretic

Examples

//Her doctor told her to avoid caffeine.

First Known Use

circa 1823, in the meaning defined above

History and Etymology

German Kaffein, from Kaffee coffee, from French café

caffeine

noun

caf·feine

ka-ˈfēn ˈka-ˌfēn

Definition

a bitter alkaloid C₈H₁₀N₄O₂ found especially in coffee, tea, cacao, and kola nuts and used medicinally as a stimulant and diuretic

Examples

//Her doctor told her to avoid caffeine.

First Known Use

circa 1823, in the meaning defined above

History and Etymology

German Kaffein, from Kaffee coffee, from French café

caffeine

noun

caf·feine

ka-ˈfēn ˈka-ˌfēn

Definition

a bitter alkaloid C₈H₁₀N₄O₂ found especially in coffee, tea, cacao, and kola nuts and used medicinally as a stimulant and diuretic

Examples

//Her doctor told her to avoid caffeine.

First Known Use

circa 1823, in the meaning defined above

History and Etymology

German Kaffein, from Kaffee coffee, from French café

caffeine — MW · Shobdo