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caffeine

/ka-feen, kaf-een, kaf-ee-in/US // kæˈfin, ˈkæf in, ˈkæf i ɪn //UK // (ˈkæfiːn, ˈkæfɪˌiːn) //

咖啡因,咖啡碱,咖啡醇,咖啡粉

Related Words

Definitions

n.名词 noun
  1. 1

    Chemistry, Pharmacology.

    • : a white, crystalline, bitter alkaloid, C8H10N4O2, usually derived from coffee or tea: used in medicine chiefly as a nervous system stimulant.

Synonyms & Antonyms

Examples

  • Now its lattes and caffeine are flying through the sky in silent drones moving at 80 miles per hour.

  • Of Nuun Sport’s 13 flavors, I highly recommend citrus fruit, strawberry lemonade, and cherry limeade plus caffeine.

  • I love drinking tea, but I have to cut off my caffeine intake pretty early in the day if I want to get to sleep at a decent hour.

  • “If you want to understand penicillin or caffeine, you can’t do that on a conventional supercomputer, no matter how big you make it,” Krishna explained.

  • Nestlé Chief Executive Officer Mark Schneider skips his afternoon Nespresso, as genetic tests revealed his body processes caffeine only slowly, depriving him of sleep.

  • The Pentagon security reviewers must have been suffering a dearth of caffeine or sleep.

  • The story gets out that Obama skipped his usual afternoon dose of caffeine heading toward the U.N. meeting.

  • This clean source of caffeine is the next noble, and healthy, substitute for your daily cup of coffee.

  • A “caffeine nap,” or a quick cup of something caffeinated followed by a nap, outperforms both a nap or caffeine independently.

  • Einöther authored the most comprehensive review of research on caffeine to date.

  • Both contain stimulating alkaloids, theobromine and caffeine, and fat is a notable constituent of cocoa.

  • It's thick enough to stand a spoon up in, and it has way more caffeine than the kiddee-pops like Red Bull.

  • I'd totaled about three hours of sleep, and even three cups of the Turk's caffeine mud failed to jump-start my brain.

  • It appears to be identical with caffeine, the active principle of coffee and tea.

  • This first term gives rise to a series of bodies in lateral groups, of which the most interesting are caffeine and theobromine.