from The Century Dictionary.

  • noun A bitter crystallizable volatile principle (C8H10N4O2) found in tea, coffee, and some other plants, tea yielding from 2 to 4 per cent.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Chem.) See caffeine. Called also theina.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun caffeine when present in tea


Sorry, no etymologies found.


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  • Caffeine found in tea.

    pronunced as tea-een

    June 21, 2008