CEDICT
bark of the bamboo stem (A kind of bark used in traditional Chinese medicine.)
Wiktionary
重編國語辭典
禾本科植物青竿竹(Bambusatuldoides)、南洋竹(Bambusabeecheyana)、淡竹(Phyllostachysglauca)的莖稈的乾燥中間層
維基詞典