| boys-and-girls | n. (Bot.) a Eurafrican annual (Mercurialis annua) naturalized in America as a weed; formerly dried for use as a purgative, diuretic or antisyphilitic. |
| herb mercury | (n) Eurafrican annual naturalized in America as a weed; formerly dried for use as a purgative, diuretic or antisyphilitic, Syn. Mercurialis annua, boys-and-girls, herbs mercury |