costusroot

1. A yellow volatile essential oil obtained from costusroot; used in perfumes.
   一种从广木香中获取的黄色挥发性香精油，用于香水中。

noun

1. annual herb of the eastern Himalayas (Kashmir) having purple florets and a fragrant root that yields a volatile oil used in perfumery and for preserving furs

   Synonym:    Saussurea costusSaussurea lappa