Definition of herpesvirus
: any of a family (Herpesviridae) of double-stranded DNA viruses that include the cytomegalovirus and Epstein-Barr virus and the causative agents of chicken pox, herpes simplex, Marek's disease, roseola infantum, and shingles
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Merriam-Webster unabridged
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Time Traveler for herpesvirus
The first known use of herpesvirus was in 1925
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