the cassia tree 旃那树 ■[mass noun]a laxative prepared from the dried pods of this tree 旃那树干荚果中提取的泄剂 ■used in names of similar plants of the pea family, e.g. bladder senna, scorpion senna [用于其它类似豆科植物名中,如bladder senna, scopion senna]
语源
mid 16th cent.: from medieval Latin sena, from Arabic sanā