nettle

Short definition from Wiktionary

Noun

1. 1
   Especially, most species of herb genus Urtica, stinging nettles: Most, but not all, subspecies of Urtica dioica (common nettle),
2. 2
   Especially, most species of herb genus Urtica, stinging nettles: Urtica incisa (Australian nettle);
3. 3
   Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash: Wood nettle (Laportea canadensis);
4. 4
   Bull nettles and spurge nettles (Cnidoscolus spp.): Cnidoscolus stimulosus, bull nettle, spurge nettle,
5. 5
   Bull nettles and spurge nettles (Cnidoscolus spp.): Cnidoscolus texanus, Texas bull nettle,
6. 6
   Bull nettles and spurge nettles (Cnidoscolus spp.): Cnidoscolus urens, bull nettle,
7. 7
   Nettle trees or tree nettles: Various species of the genus Dendrocnide
8. 8
   Nettle trees or tree nettles: Urera baccifera (scratchbush),
9. 9
   Nettle trees or tree nettles: Urtica ferox (tree nettle);
10. 10
    Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash: rock nettle (Eucnide spp.);
11. 11
    Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash: small-leaved nettle (Dendrocnide photinophylla).
12. 12
    Certain plants that have spines or prickles: ball nettle (Solanum carolinense);
13. 13
    Certain plants that have spines or prickles: Solanum elaeagnifolium, bull nettle, silver-leaf nettle, white horse-nettle;
14. 14
    Certain plants that have spines or prickles: Solanum dimidiatum, western horse-nettle, robust horse-nettle;
15. 15
    Certain plants that have spines or prickles: Solanum rostratum, horse-nettle;
16. 16
    Certain plants that have spines or prickles: Celtis (hackberry).
17. 17
    Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: dead nettle, dumb nettle (Lamium spp.), particularly Lamium album, white nettle;
18. 18
    Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: false nettle (Boehmeria spp., family Urticaceae);
19. 19
    Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: flame nettle or painted nettle (Coleus spp.);
20. 20
    Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: hedge nettle (Stachys spp.);
21. 21
    Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: hemp nettle (Galeopsis spp.);
22. 22
    Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: horse nettle Agastache urticifolia,
23. 23
    Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica: nilgiri nettle, Himalayan giant nettle (Girardinia diversifolia, family Urticaceae).
24. 24
    Loosely, anything which causes a similarly stinging rash, such as a jellyfish or sea nettle.

Verb

1. 1
   Of the nettle plant and similar physical causes, to sting, causing a rash in someone.
2. 2
   To pique, irritate, vex or provoke.