dittany

1. No sword, said Harry through gritted teeth, as he dripped dittany through the singed hole in his jeans onto the angry burn beneath.
   丢了宝剑，哈利咬着牙说，一边透过牛仔裤上烧焦的破洞往红肿的烫伤处滴白鲜香精。

noun

1. Eurasian perennial herb with white flowers that emit flammable vapor in hot weather

   Synonym:    fraxinellaburning bushgas plantDictamnus alba