Japanese edit

For pronunciation and definitions of リュウタン – see the following entry.
竜胆りゅうたん
[noun] (traditional Chinese medicine) rhizome of Gentiana scabra var. buergeri
[noun] alternative form of 竜胆 (rindō)
Alternative spelling
龍胆
(This term, リュウタン, is the katakana spelling of the above term.)