caffeine

[n] - a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
Found on http://www.webdictionary.co.uk/definition.php?query=caffeine

Caffeine

The drug contained in coffee and tea. This is the stuff that makes coffee so addictive. It stimulates the central nervous system and, in the right amounts, causes adrenaline to be released and can enhance heart function. It helps with intellect, defends the body, and can even enhance sex! See the caffeine section of Coffee World for more informatio
Found on http://www.realcoffee.co.uk/Article.html?Cat=Trivia&Page=4

Caffeine

Photograph of a caffeine molecular model, courtesy of Indigo® Instruments.A substance found in tea, coffee, and cola that acts as a stimulant. It is extremely soluble in supercritical fluid carbon dioxide and somewhat soluble in water; aqueous solutions of caffeine quickly break down. Symbol C8H10N4O2
Found on http://www.diracdelta.co.uk/science/source/c/a/caffeine/source.html

caffeine

(C8H10N4O2) methyltheobromine; guaranine; 1,3,7-trimethylxanthine; 1,3,7-trimethyl-2,6-dioxopurine. A substance found in tea, coffee, and cola that acts as a stimulant. It is extremely soluble in supercritical fluid carbon dioxide and somewhat soluble in water; aqueous solutions of caffeine quickly break
Found on http://antoine.frostburg.edu/chem/senese/101/glossary/c.shtml

Caffeine

Caffeine: A stimulant found naturally in coffee beans, tea leaves, cocoa beans (chocolate) and kola nuts (cola) and added to soft drinks, foods, and medicines. A cup of coffee has 100-250 milligrams of caffeine. Black tea brewed for 4 minutes has 40-100 milligrams. Green tea has one-third as much caffeine as black tea. Caffeine is an alkaloid. It i
Found on http://www.medterms.com/script/main/art.asp?articlekey=11068

caffeine

A xanthine derivative that elevates cAMP levels in cells by inhibiting phosphodiesterases.
Found on http://www.encyclo.co.uk/visitor-contributions.php

Caffeine

Caf·fe'ine noun [ Confer French caféine . See Coffee .] (Chemistry) A white, bitter, crystallizable substance, obtained from coffee. It is identical with the alkaloid theine from tea leaves, and with guaranine from guarana.
Found on http://www.encyclo.co.uk/webster/C/5

caffeine

<chemical> A xanthine derivative that elevates cAMP levels in cells by inhibiting phosphodiesterases. ... (18 Nov 1997) ...
Found on http://www.mondofacto.com/facts/dictionary?caffeine

caffeine

caffein noun a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
Found on http://wordnetweb.princeton.edu/perl/webwn?s=caffeine

caffeine

(kă-fēn´) (kaf´ēn) a xanthine compound found in coffee, tea, chocolate, and colas; it is a central nervous system stimulant, diuretic, striated muscle stimulant, and acts on the cardiovascular system. As the base or the citrate salt, it is used as a central nervous system stimulant ...
Found on http://www.encyclo.co.uk/local/21001

Caffeine

• (n.) A white, bitter, crystallizable substance, obtained from coffee. It is identical with the alkaloid theine from tea leaves, and with guaranine from guarana.
Found on http://thinkexist.com/dictionary/meaning/caffeine/

caffeine

nitrogenous organic compound of the alkaloid group, substances that have marked physiological effects. Caffeine occurs in tea, coffee, guarana, ... [9 related articles]
Found on http://www.britannica.com/eb/a-z/c/4

Caffeine

C8H10N4O2 Molar mass: 194.1906
Found on http://www.convertunits.com/molarmass/Caffeine

Caffeine

[disambiguation] Caffeine is the name of an alkaloid present in certain plants, such as coffee and tea. Caffeine can also refer to: ...
Found on http://en.wikipedia.org/wiki/Caffeine_(disambiguation)

Caffeine

[film] ==Plot== The staff and customers of the cafe get an extra "jolt" with their coffee when a commitment-shy man has a public fight with his angry ex-girlfriend, instigating a series of revelations about the eavesdropping couples nearby and their own "unusual" relationships; filled with eccentric personal conversations, confrontational a
Found on http://en.wikipedia.org/wiki/Caffeine_(film)

Caffeine

Caffeine (Theine or methyl-theobromine) is a white, bitter, crystalline alkaloid usually derived from coffee or tea and used in medicine as a nervous system stimulant. It was discovered in coffee by Runge in 1820, and in tea by Oudry in 1827.
Found on http://www.probertencyclopaedia.com/browse/GC.HTM

caffeine

Type: Term Pronunciation: kaf′ēn Definitions: 1. An alkaloid obtained from the dried leaves of Thea sinensis, tea, or the dried seeds of Coffea arabica, coffee; used as a central nervous system stimulant, diuretic, circulatory and respiratory stimulant. Synonyms: guaranine, thein
Found on http://www.medilexicon.com/medicaldictionary.php?t=13209

Caffeine

Caffeine is a bitter, white crystalline xanthine alkaloid that acts as a stimulant drug. Caffeine is found in varying quantities in the seeds, leaves, and fruit of some plants, where it acts as a natural pesticide that paralyzes and kills certain insects feeding on the plants. It is most commonly consumed by humans in infusions extracted from the
Found on http://en.wikipedia.org/wiki/Caffeine

caffeine

Or trimethylxanthine (C8H10N4O2), an alkaloid extracted from coffee, and also found in tea, cocoa, and cola. Caffeine stimulates the central nervous system and heart, and is a diuretic. It increases alertness...
Found on http://www.daviddarling.info/encyclopedia/C/caffeine.html

Caffeine

A stimulating compound found in tea.
Found on http://www.hungrymonster.com/Foodfacts/Tea_Glossary.cfm

Caffeine

An alkaloid that can be found in coffee, tea, soft drinks, chocolate, medications and a variety of other foods. Consuming large amounts of caffeine during pregnancy has been linked to birth defects in the fetus. A nursing mother should avoid or limit the amount of caffeine she consumes while breastfeeding because caffeine does pass through the br..
Found on http://www.pregnology.com/AZ/C/1

caffeine

caffeine (kăfēn') , odorless, slightly bitter alkaloid found in coffee, tea, kola nuts (see cola), ilex plants (the source of the Latin American drink maté), and, in small amounts, in cocoa (see cacao). It can also be prepared synthetically from uric acid. While relatively har...
Found on http://www.infoplease.com/ce6/sci/A0809792.html

caffeine

Alkaloid organic substance found in tea, coffee, and kola nuts; it stimulates the heart and central nervous system. When isolated, it is a bitter crystalline compound, C8H10N4O2. Too much caffeine (more than six average-size cups of tea or coffee a d...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0009927.html

caffeine

A substance found in the leaves and beans of the coffee tree, in tea, yerba mate, guarana berries, and in small amounts in cocoa. It can also be made in the laboratory, and is added to some soft drinks, foods, and medicines. Caffeine increases brain activity, alertness, attention, and energy. It may also increase blood pressure, heart rate, breathi
Found on http://www.cancer.gov/dictionary?expand=C

caffeine

stimulating compound present in tea
Found on http://www.tealand.com/Glossary.htm
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