arsesmart

蓼属植物

发音

/ˈɑːsmɑːt/

别名

arsmart

释义与例句

n.
  1. 1.

    A water pepper plant, of species Persicaria hydropiper (formerly Polygonum hydropiper).

    不可数

词源

From arse + smart, because the plant stings when it touches bare skin, and was often laid in beds to kill fleas.

来源：wiktionary