(medicine) A type of physical urticaria that appears when a person is sweating or their core body temperature increases.

(medicine) Itchy, swollen, red areas of the skin which can appear quickly in response to an allergen or other conditions.

Causing itching or stinging.

Such a substance.

plural of urticant

plural of urticaria

(pathology) The development of urticaria (hives). / The sensation of being stung by nettles. / (medicine) Beating the skin with nettles (formerly used to treat paralysis).

To have or produce a stinging sensation, as of nettles or urticating hair.

Marked by the presence of wheals.

Of or pertaining to a natural order of plants, Urticaceae, of which the nettle is the type.