herpes simplex
noun/ˌhɜːpiːz ˈsɪmpleks/
/ˌhɜːrpiːz ˈsɪmpleks/
[uncountable] (medical)- an infection caused by a virus, that can cause painful areas around the mouth or on the genitals
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herpes simplex
Definition of herpes simplex noun from the Oxford Advanced Learner's Dictionary