Herpes
Herpes , noun
[Latin, from Greek "e`rphs, from "e`rpein to creep.]
(Medicine) An eruption of the skin, taking various names, according to its form, or the part affected, caused by a herpesvirus infection; especially, an eruption of vesicles in small distinct clusters, accompanied with itching or tingling, including shingles, ringworm, and the like; -- so called from its tendency to creep or spread from one part of the skin to another.