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Definitions for Caffeine

[1] a white, crystalline, bitter alkaloid, C8 H10 N4 O2 , usually derived from coffee or tea: used in medicine chiefly as a nervous system stimulant.
[2] a white crystalline bitter alkaloid responsible for the stimulant action of tea, coffee, and cocoa: a constituent of many tonics and analgesics. Formula: C 8 H 10 N 4 O 2 See also xanthine (def. 2)

Words related to Caffeine

cappuccino, espresso, perk, mud, brew, java, decaf, decoction, mocha, demitasse, ink, joe

Words nearby Caffeine

cafeteria-style, cafetiere, cafetorium, caff, caffeinated, caffeine, caffeinism, caffey's disease, caffey's syndrome, caffè latte, caffè macchiato

Origin of Caffeine

1820–30; < French caféine, equivalent to café coffee + -ine -ine2

Other words from Caffeine

caf·fein·ic [ka-fee -nik, kaf-ee-in -ik] /kæˈfi nɪk, ˌkæf iˈɪn ɪk/ , adjective
non·caf·feine , noun
non·caf·fein·ic , adjective

Word origin for Caffeine

C19: from German Kaffein, from Kaffee coffee

Synonyms for Caffeine

cappuccino, espresso, brew, decaf, decoction, demitasse, ink, java, mocha, mud, perk, battery acid, café, café au lait, café noir, forty weight, hot stuff, jamocha, joe, varnish remover