Definitions

1. noun

A type of Lyme disease, characterized by the appearance of a distinctive rash or lesion.

“The patient was diagnosed with erythema migrans, a skin condition caused by the Lyme disease bacteria.”

2. noun

A type of migratory bird, especially one that travels in large flocks or groups.

“The migrans of songbirds are a wonder to behold, as they fly thousands of miles each year.”