Definition of oolong in English:



  • A dark-colored China tea made by fermenting the withered leaves to about half the degree usual for black teas.

    • ‘Manufacturers process C. sinensis leaves three different ways to produce the three major classes of teas known as green, black, and oolong.’
    • ‘The fermentation process makes the Formosa oolong a darker liquid than the Chinese oolong, putting it in a category ‘between the unfermented green teas and the fully fermented black teas’.’
    • ‘Whether they're black, green, white or oolong, true tea leaves contain powerful antioxidants that act as nature's own disease fighters.’
    • ‘This is where they grow Lishan oolong, the most expensive tea in the world at some US $400 per kilo.’
    • ‘The tea plant, Camellia sinensis, comes in many forms - black, green, oolong.’
    • ‘Indonesia also imports oolong, which is available at tea boutiques in Jakarta and other major cities.’
    • ‘But caffeine may not be the only potent substance in oolong, as the tea drinkers had a greater increase in fat oxidation as well.’
    • ‘Imported teas contain far less caffeine than U.S. black teas: half as much in oolong and one-third as much in green teas.’
    • ‘Teas that are produced from a tea bush - black, green and oolong - contain substances called alkylamines, which stimulate white blood cells to fight infection.’
    • ‘Actually, these are types of tea, of which there are four basic kinds: black, oolong, green and white.’
    • ‘Of the three main categories of tea (green, oolong, and black) the first and third are most commonly used for this purpose.’
    • ‘There are three primary types of tea - green, oolong and black.’
    • ‘For example, green tea is cold, black tea is hot, oolong is warm.’
    • ‘Although thousands of varieties exist, the three main categories are black, green and oolong.’
    • ‘More than 200 types of tea are available, from green to black to oolong.’
    • ‘Chrysanthemum tea, made of white chrysanthemums and high-quality oolong, is a must for office workers in the closed environment with radiation contamination.’
    • ‘Legend holds that monkeys gathered leaves from high tea trees to help Chinese monks make Tieguanyin oolong.’
    • ‘Green tea, which is unfermented, and oolong, which is partially fermented, are popular in Asia, while in the West, fermented black tea - often taken with milk - is generally preferred.’
    • ‘Teas are made from the leaf of the Camellia sinesis plant and there are three types of tea - green, oolong, and black.’
    • ‘There are many types of tea sold in Korea - white, green, oolong, and black.’


Mid 19th century: from Chinese wūlóng, literally black dragon.