Medical Dictionary
erythema migrans
noun
Medical Definition of ERYTHEMA MIGRANS
: a spreading annular erythematous skin lesion that is an early symptom of Lyme disease and that develops at the site of the bite of a tick (as the deer tick) infected with the causative spirochete—called also erythema chronicum migrans
Seen & Heard
What made you want to look up erythema migrans? Please tell us where you read or heard it (including the quote, if possible).