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oolong

American  
[oo-lawng, -long] / ˈuˌlɔŋ, -ˌlɒŋ /

noun

  1. a brown or amber tea grown in China and Taiwan and partially fermented before being dried.


oolong British  
/ ˈuːˌlɒŋ /

noun

  1. a kind of dark tea, grown in China, that is partly fermented before being dried

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of oolong

First recorded in 1850–55, oolong is from the Chinese word wúlóng literally, black dragon, or < a cognate dial. form

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

While green tea has been studied extensively, much less is known about the health effects of other varieties, including black, oolong, and white tea, particularly when comparing their benefits.

From Science Daily • Jan. 28, 2026

Take the Yuanyang Martini, an espresso martini with black sesame and black tea or Red Robe, featuring cognac, bourbon, oolong tea and white miso.

From Los Angeles Times • May 21, 2025

Today, the KMT’s descendants graciously welcome China’s fun-seeking tourists, sheltering them in cozy, Chinese-themed hotels and plying them with locally grown, fermented oolong tea.

From Washington Times • Apr. 28, 2023

Whether your beverage of choice is herbal, black, oolong or green, Trader Joe's has got you covered with its assortment of delicious teas — both bagged and loose leaf!

From Salon • Dec. 14, 2022

I do not hear that he discusses his neighbor's affairs, or that he distils into his oolong one drop of bitter scandal by way of flavor.

From The Atlantic Monthly, Volume 20, No. 120, October, 1867. by Various