oolong

UK: /ˈuːˌlɒŋ/ US: (o̅o̅′lông′, -long′)

WordReference Random House Unabridged Dictionary of American English © 2026

oo•long  (o̅o̅′lông′, -long′), n. 

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

• a cognate dialect, dialectal form
• Chinese wúlóng literally, black dragon, or
• 1850–55

Collins Concise English Dictionary © HarperCollins Publishers::

oolong / ˈuːˌlɒŋ/ noun

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

Etymology: 19th Century: from Chinese wu lung, from wu black + lung dragon