oolong
/ˈuːlɒŋ
/noun [mass noun]
A kind of dark-coloured China tea made by fermenting the withered leaves to about half the degree usual for black teas.Whether they're black, green, white or oolong, true tea leaves contain powerful antioxidants that act as nature's own disease fighters....
- Imported teas contain far less caffeine than U.S. black teas: half as much in oolong and one-third as much in green teas.
- There are three primary types of tea - green, oolong and black.
Origin
Mid 19th century: from Chinese wūlóng, literally 'black dragon'.