Cold sore

//ˈkoʊld ˌsɔɹ// noun

Definitions

Noun
  1. 1
    A small bump (namely a vesicle) on the lips resulting from infection by herpes simplex viruses (mostly HHV1 but also HHV2).
  2. 2
    caused by herpes simplex virus type 1 (HSV-1) wordnet

Etymology

Compound of cold + sore, probably for the tendency of the vesicles to recur along with other illness, or possibly during cold weather, though this explanation is less common. Compare synonym fever blister.

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