The meaning of ERYTHEMA is abnormal redness of the skin or mucous membranes due to capillary congestion (as in inflammation).
Erythema (from the Greek erythros, meaning red) is redness of the skin or mucous membranes, caused byhyperemia (increased blood flow) in superficial capillaries. It occurs with any skin injury, infection, or inflammation. Examples of erythema not associated with pathology include nervous blushes....
The meaning of ERYTHEMA MIGRANS is a red spreading annular skin lesion that is an early symptom of Lyme disease and that develops at the site of the bite of a tick (such as the deer tick) infected with the causative spirochete.