Moxa \Mox"a\, n. [A corruption of Japan. mogusa (pronounced
mongsa), an escharotic made from the plant yomigi: cf. F.
moxa.]
1. (Med.) A soft woolly mass prepared from the young leaves
of {Artemisia Chinensis}, and used as a cautery by burning
it on the skin; hence, any substance used in a like
manner, as cotton impregnated with niter, amadou.
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2. (Bot.) A plant from which this substance is obtained, esp.
{Artemisia Chinensis}, and {Artemisia moxa}.
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