[mass noun]a purgative made from the dried bark of an American buckthorn
鼠李皮。
the tree from which this bark is obtained, native to western North America
药鼠李。
"late 19th cent.: from Spanish
n. 鼠李皮;药鼠李
A buckthorn(Rhamnus purshiana) native to northwest North America, the bark of which is the source of cascara sagrada.
药鼠李树原产北美洲西北部的一种药鼠李树(珀希鼠李鼠李属),其树皮是药鼠李皮剂的原料。
[mass noun]a purgative made from the dried bark of an American buckthorn
鼠李皮。
the tree from which this bark is obtained, native to western North America
药鼠李。
"late 19th cent.: from Spanish