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)、澹竹(Phyllostachysglauca)的茎秆的乾燥中间层
維基詞典