moxa
/ˈmɒksə/noun
mass noun
1- a downy substance obtained from the dried leaves of an Asian plant related to mugwort. It is burnt on or near the skin in Eastern medicine as a counterirritant.（针灸用）艾绒, 灼烙剂。
1.1
- The plant is Crossostephium artemisioides, family Compositae.该物质来自植物艾, 菊科。
词源
late 17th cent.: from Japanese mogusa, from moe kusa 'burning herb'.