nettle.

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. Especially, most species of herb genus Urtica, stinging nettles: Most, but not all, subspecies of Urtica dioica (common nettle),

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. Especially, most species of herb genus Urtica, stinging nettles: Urtica incisa (Australian nettle);

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. wood nettle (Laportea canadensis);

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. bull nettles and spurge nettles (Cnidoscolus spp.): bull nettle, spurge nettle (Cnidoscolus stimulosus)

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. bull nettles and spurge nettles (Cnidoscolus spp.): Texas bull nettle (Cnidoscolus texanus),

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. bull nettles and spurge nettles (Cnidoscolus spp.): bull nettle (Cnidoscolus urens),

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. nettle trees or tree nettles: Various species of the genus Dendrocnide

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. nettle trees or tree nettles: Various species of the genus Dendrocnide: small-leaved nettle (Dendrocnide photinophylla).

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. nettle trees or tree nettles: scratchbush (Urera baccifera)

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. nettle trees or tree nettles: tree nettle (Urtica ferox);

Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash. rock nettles (Eucnide spp.);

Certain plants that have spines or prickles: ball nettle (Solanum carolinense);

Certain plants that have spines or prickles: bull nettle, silver-leaf nettle, white horse-nettle (Solanum elaeagnifolium);

Certain plants that have spines or prickles: western horse-nettle, robust horse-nettle (Solanum dimidiatum);

Certain plants that have spines or prickles: horse-nettle (Solanum rostratum);

Certain plants that have spines or prickles: hackberries (Celtis spp.).

Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: dead nettles, dumb nettles (Lamium spp.), particularly Lamium album, white nettle;

Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: false nettles (Boehmeria spp., family Urticaceae);

Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: flame nettles or painted nettles (Coleus spp.);

Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: hedge nettles (Stachys spp.);

Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: hemp nettles (Galeopsis spp.);

Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: horse nettle Agastache urticifolia,

Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: nilgiri nettles, Himalayan giant nettles (Girardinia diversifolia, family Urticaceae spp.).

Loosely, anything which causes a similarly stinging rash, such as a jellyfish or sea nettle.

Of the nettle plant and similar physical causes, to sting, causing a rash in someone.

The children were badly nettled after playing in the field.

To pique, irritate, vex or provoke.