from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Alternative spelling of caffeine.
from the GNU version of the Collaborative International Dictionary of English
- n. A white, bitter, crystallizable substance, found in coffee and tea. It is identical with the alkaloid theine from tea leaves, and with guaranine from guarana. It is responsible for most of the stimulating effect of coffee or tea.
from The Century Dictionary and Cyclopedia
- n. An alkaloid, C8H10N4O2, crystallizing in slender, silk-like needles which have a bitter taste, found in coffee-beans.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
Sorry, no etymologies found.
Certain trees growing wild in the Comoro Islands and Madagascar are known as caffein-free coffee trees.
Coffee, as is well known, contains an active principle known as caffein which acts as a stimulant to the nervous system and in small quantities is very beneficial.
Though the flavors of tea, coffee, and cocoa are so different, they all depend for their effect upon a spicy-tasting substance, called caffein from its having been first separated out of coffee.
It takes a while to get past the craving for the caffein and sugar high, but once done it makes a huge difference.
Then, when they aren't ready for bed at 8pm, you think "Oh no, they've got Hyperactivity Disorder"- no, they're just so jacked up on sugar and caffein that they can't sit still long enough to blink. wowohwow
I, too, cannot have breakfast without having a rush of caffein intake first.
I'm incredibly caffein sensitive and I can drink it before napping.
According to a new study, caffein raises blood pressure but lowers heart rates in children during exercise.
Oh – ai also hav Erl Grey tee fur teh non-cowfee drinkers – an sum herbalz fur tehnon caffein peepl.
In 1997, the near term goal was to teleport an atom, and then follow that up with an intact caffein molecule by 2005 (on the path towards teleporting a whole cup of coffee).