urticate - meaning and definition. What is urticate
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What (who) is urticate - definition

DEFENSE MECHANISMS USED BY PLANTS, TARANTULAS, AND CATERPILLARS
Urticating Hairs; Urtication; Urticating hairs; Urticate; Urticating; Urticated
  • An adult female of a ''[[Brachypelma]]'' species, showing a bald patch after kicking bristles off of her abdomen. After molting, the bristles will grow again.
  • Skin rash caused by the exposure to bristles shed by brown-tail moth larvae
  • The larva of ''[[Eutricha capensis]]'' in the family [[Lasiocampidae]] is practically covered with urticaceous hairs, but the worst of them are the stiff, shortish ones in the orange and dark-maroon bands across the thorax.
  • Larva of ''[[Lonomia obliqua]]'', the most toxicologically significant species of the genus; severe cases of its sting are life-threatening and require treatment with [[antivenom]]
  • Urticating hairs of a [[stinging nettle]]

Urticate         
·vt & ·vi To sting with, or as with, nettles; to Irritate; to Annoy.
urticate         
['?:t?ke?t]
¦ verb sting or prickle like a burn from a nettle.
Derivatives
urtication noun
Origin
C19 (earlier (C17) as urtication): from med. L. urticat-, urticare 'to sting', from L. urtica (see urticaria).
Urticated         
·Impf & ·p.p. of Urticate.

Wikipedia

Urticating hair

Urticating hairs or urticating bristles are one of the primary defense mechanisms used by numerous plants, almost all New World tarantulas, and various lepidopteran caterpillars. Urtica is Latin for "nettle" (stinging nettles are in the genus Urtica), and bristles that urticate are characteristic of this type of plant, and many other plants in several families. This term also refers to certain types of barbed bristles that cover the dorsal and posterior surface of a tarantula's or caterpillar's abdomen. Many tarantula species eject bristles from their abdomens, directing them toward potential attackers. These bristles can embed themselves in the other animal's skin or eyes, causing physical irritation, usually to great discomfort. The term urticating hairs is a misnomer, as technically only mammals possess true hairs.