Urtica
— Noun
– English
～ a nettle yielding fiber resembling flax
Urtica dioica
— Noun
– English
～ perennial Eurasian nettle established in North America having broad coarsely toothed leaves with copious stinging hairs
Urtica pipulifera
— Noun
– English
～ annual European nettle with stinging foliage and small clusters of green flowers
Urticaceae
— Noun
– English
～ a family of plants of order Urticales including many nettles with stinging hairs
Urticales
— Noun
– English
～ an order of dicotyledonous plants including Moraceae and Urticaceae and Ulmaceae
urticaria
— Noun
– English
～ an itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs