Definition of erythema migrans
: 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
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Origin and Etymology of erythema migrans
New Latin, literally, (chronic) migrating erythema
First Known Use: 1979
Medical Dictionary
erythema migrans
noun
erythema mi·grans
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
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