stinging nettle
noun
1- a Eurasian nettle covered in minute hairs that inject irritants when they are touched. These include histamine, which causes itching, and acetylcholine, which causes a burning sensation.大荨麻。
1.1
- Genus Urtica, family Urticaceae: several species, in particular U. dioica.荨麻属, 大荨科：数种, 尤指细荨麻。