black tea

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A dark tea prepared from fresh tea leaves that have been fully fermented before being dried.

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

• noun Tea leaves which have been "fermented" (actually, oxidized) before drying to enhance their flavour.
• noun UK A cup of tea served without milk.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun fermented tea leaves