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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

caf·feine

(kă-fēn′)
A bitter white alkaloid found in tea, coffee, and various plants. It is a mild stimulant.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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
caffein
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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] n → caféine f
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

caffeine

caffein [ˈkæfiːn] n → caffeina
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

caffeine

(ˈkӕfiːn) , ((American) kӕˈfi:n) noun
a drug found in coffee and tea.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

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
Multilingual Translator © HarperCollins Publishers 2009

caf·feine

n. cafeína, alcaloide presente esp. en el café y el té, estimulante y diurético.
English-Spanish Medical Dictionary © Farlex 2012

caffeine

n cafeína
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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References in periodicals archive ?
The most common caffeine withdrawal symptom you'll have is (https://draxe.com/health/brain-health/caffeine-headaches/) headache .
Signs And Symptoms Of Caffeine Headaches
Many people drink coffee and its accompanying caffeine to help them start their day.
Is caffeine good or bad for you?
And, caffeine is among those items that have been recommended by experts to avoid during this period.&nbsp;It is mainly because this chemical compound that is mostly found in coffee, tea, chocolate and soda could(https://cms.ibtimes.com/drinking-too-much-coffee-can-lead-dehydration-2803733) increase the risk of miscarriage and birth defects in newborns, according to the American Pregnancy Association.
Caffeine Intake During Pregnancy May Cause Liver Damage In Babies, Study Says
In the past, there have been reports of applicability of methylxanthines and theophylline being used for the cure of episodic apnea in premature infants till they complete a post-conceptional age of 34-35 weeks.1 As demonstrated by a literature review designed for the objective of prophylaxis or treatment of apnea of prematurity, some documentation regarding the use of theophylline or caffeine depicting some degree of altercation regarding the dosage regime2, the appropriate concentration of serum methylxanthine, the compulsion for drug monitoring, and the outcome of drug usage,3 is still present.
Comparison of Caffeine versus Theophylline for apnea of prematurity
Caffeine continues to be one of the most commonly used substances in youth, with about 75% of older children and adolescents consuming it regularly, often at an average dose of about 25 mg/day for children aged 6-11 years and 50 mg/ day for adolescents.
Consider caffeine effects on children and adolescents
In the study, Dr Ling-Wei Chen looked at 941 Irish mothers and babies where tea was the mothers' main source of caffeine (48%), followed by coffee (38%).
Even a cuppa can be bad for unborn baby; DR MIRIAM STOPPARD; Helping to keep you fit and healthy
Caffeine is a natural stimulant found in tea, coffee and cacao plants.
How much is too much caffeine?
The Mayo Clinic reported that ingesting more than 500-600 mg of caffeine a day may lead to insomnia, nervousness, restlessness, irritability, an upset stomach, irregular heartbeat, and even muscle tremors.
Here's how you can stop caffeine from taking over your life
Indeed, Caffeine Studios, the companies note, "will leverage FOX Sports' expertise in live events and programming to create exclusive eSports, video game, sports, and live entertainment content" for Caffeine's social broadcasting platform.The amount of their investments is undisclosed.
'Social Broadcasting' Gets A $100M Investment From FOX
There have been many studies on the effects of caffeine, with mixed results.
Caffeine's pros and cons
Costa Coffee served our 13-year-old volunteer Rachel a medio iced cappuccino containing three shots and a huge 277mg of caffeine.
CAFFIENDS; SUNDAY Mirror INVESTIGATES; Banned from buying energy drinks but schoolkids can still get coffees with THREE TIMES the caffeine; EXCLUSIVE

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