Pronunciation: - ' m ī -gr ə nz
Variant: or erythema chron · i · cum migrans \ - ˌ krä-n ə -k ə m- \
Function: noun
Etymology: New Latin, literally, (chronic) migrating erythema
Date: 1979
: 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 (as the deer tick) infected with the causative spirochete