macule
noun
mac·ule ˈma-(ˌ)kyül 
: a patch of skin that is altered in color but usually not elevated
… erythema migrans is defined as a skin lesion that typically begins as a red macule or papule and expands over a period of days to weeks to form a large round lesion, often with partial central clearing.
Carrie D. Tibbles et al.
Carrie D. Tibbles et al.
Word History
Etymology
borrowed from French, "spot, stain, birthmark," going back to Middle French, borrowed from Latin macula "stain, spot, blemish" — more at macula
First Known Use
1863, in the meaning defined above
Medical Definition
macule
noun
mac·ule ˈmak-(ˌ)yü(ə)l
1
: macula sense 2
2
: a patch of skin that is altered in color but usually not elevated
Target-like macules with a dusky center are usually pathognomonic for the disorder but may not always be present. Barry Ladizinski and Kachiu C. Lee, The Journal of the American Medical Association
Barry Ladizinski and Kachiu C. Lee, The Journal of the American Medical AssociationThe lesions begin as 1 to 3 mm macules that gradually become confluent, assuming a reticulated lacelike pattern. Pearl E. Grimes, Scientific American Medicine Bulletin
Pearl E. Grimes, Scientific American Medicine Bulletin