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Definition of zovirax
zovirax
/ˈzoʊvəræks/
zo · vi · rax
zovirax Lexical Profile
CEFR
C1
Grade
10
Tier
3
Usage
Rare
• noun
1
A proprietary brand name for the antiviral medication acyclovir, commonly prescribed to treat infections caused by the herpes simplex virus, including cold sores, genital herpes, and chickenpox.
Example
"The dermatologist recommended applying Zovirax at the first sign of a cold sore to reduce the severity of the outbreak."
Synonyms
View all synonyms for zoviraxWord Nuance & Usage
Zovirax is a proprietary brand name and should typically be capitalized. It is used interchangeably in common parlance with its generic formulation, acyclovir.
Word Origin & Etymology
A proprietary trade name coined by the pharmaceutical company Burroughs Wellcome (now part of GlaxoSmithKline) in the late 1970s. The name incorporates the morpheme 'vir' to denote its action against viruses.
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Zovirax. In Wordmom Dictionary. Retrieved Oct 17, 2026, from https://wordmom.com/dictionary/zovirax