Webster’s Revised Unabridged Dictionary · 1913
Urticaria
Ur′ti·ca′ri·a (ûr′tĭ·kā′rĭ·ȧ), n. [NL. See Urtica.] (Med.) The nettle rash, a disease characterized by a transient eruption of red pimples and of wheals, accompanied with a burning or stinging sensation and with itching; uredo.