caffeine


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caf·feine

also caf·fein  (kă-fēn′, kăf′ēn′)
n.
A bitter white alkaloid, C8H10N4O2, found in certain plants such as cacao, coffee, kola, and tea, that stimulates the central nervous system and body metabolism and is used in medicine, usually in combination with other drugs, to relieve headaches and treat respiratory conditions in premature infants.

[German Kaffein (from Kaffee, coffee) or French caféine, both from French café, coffee; see café.]

caffeine

(ˈkæfiːn; ˈkæfɪˌiːn) or

caffein

n
(Elements & Compounds) a white crystalline bitter alkaloid responsible for the stimulant action of tea, coffee, and cocoa: a constituent of many tonics and analgesics. Formula: C8H10N4O2. See also xanthine2
[C19: from German Kaffein, from Kaffee coffee]

caf•feine

(kæˈfin, ˈkæf in)

n.
a white, crystalline, bitter alkaloid, C8H10N4O2, usu. derived from coffee or tea, used medicinally as a stimulant.
[1820–30; < French caféine=café coffee + -ine -ine2]
caf•fein•ic (kæˈfi nɪk, ˌkæf iˈɪn ɪk) adj.

caf·feine

(kă-fēn′)
A bitter white alkaloid found in tea, coffee, and various plants. It is a mild stimulant.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.caffeine - a bitter alkaloid found in coffee and tea that is responsible for their stimulating effectscaffeine - a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
coffee, java - a beverage consisting of an infusion of ground coffee beans; "he ordered a cup of coffee"
tea - a beverage made by steeping tea leaves in water; "iced tea is a cooling drink"
alkaloid - natural bases containing nitrogen found in plants
Translations
كَافِيـنمادَّة الكافئين في القهوه والشاي
kofein
koffein
kofeiini
kofein
koffein
kaffín
カフェイン
카페인
kofeinas
kofeīns
kofeín
koffein
สารคาเฟอีน
cafêin

caffeine

[ˈkæfiːn] ncaféine f

caffeine

caffein [ˈkæfiːn] ncaffeina

caffeine

(ˈkӕfiːn) , ((American) kӕˈfi:n) noun
a drug found in coffee and tea.

caffeine

كَافِيـن kofein koffein Koffein καφεΐνη cafeína kofeiini caféine kofein caffeina カフェイン 카페인 cafeïne koffein kofeina cafeína кофеин koffein สารคาเฟอีน kafein cafêin 咖啡因

caf·feine

n. cafeína, alcaloide presente esp. en el café y el té, estimulante y diurético.

caffeine

n cafeína
References in periodicals archive ?
They also performed "waggle dances" directing their hive mates to the caffeine source.
The difference between a safe amount and a toxic dose of caffeine in these pure powdered products is very small, the agency said.
But a new study led by the University of Colorado Boulder and the Medical Research Council's Laboratory of Molecular Biology in Cambridge, England shows for the first time that evening caffeine delays the internal circadian clock that tells us when to get ready for sleep and when to prepare to wake up.
First, a solvent is needed that does not mix with water and in which the caffeine is more soluble than in water.
In the article "Caffeine as Treatment for Alzheimers: A Review", from a researcher of Old Dominion University in Norfolk, Virginia identified the potential opportunities for using caffeine to reduce beta amyloid levels.
When they looked only at people who drank less than one cup of caffeinated coffee per day, caffeine was linked to a lower risk of kidney stones in men but not women.
BEIRUT: A steady stream of students flocked undeterred to the multitudes of cafes along Bliss Street despite the torrential rains for their daily fix of caffeine.
In defining the diagnosis criteria, Juliano hopes to make it possible for people to recognize caffeine addiction as a real condition that warrants treatment.
A US study has shown that caffeine can sharpen your memories for at least 24 hours after it is consumed - long enough to cram for an exam the night before and sit the test the next day.
After trying several medications and a series of tests that revealed nothing about the cause of the headaches, Valerie's pediatrician, Michael Nelson, MD, with Kaiser Permanente in San Diego, referred her to a pediatric neurologist, who recommended some basic changes to her diet - namely, cutting out caffeine entirely.
However, according to a June 23rd panel discussion at the 2014 Institute of Food Technologists (IFT) Annual Meeting and Food Expo in New Orleans there is a rich database of health evidence that had confirmed the safety of caffeine for consumers at current levels of exposure.
com/prnh/20130307/600769 Global Market Report of Caffeine (CAS 58-08-2) aims at providing comprehensive data on Caffeine globally and regionally (Europe, Asia, North America, Latin America etc.