virus

/vi.ʁys/
1.
nounmasculine

biological virus (infectious agent)

Ce virus se propage rapidement entre les personnes non vaccinées.

This virus spreads quickly among unvaccinated people.

Synonyms:agent infectieux, microbe
2.
nounmasculine

computer virus (malicious software that infects computers)

Mon ordinateur a été infecté par un virus ; j'ai dû réinstaller le système.

My computer was infected by a virus; I had to reinstall the OS.

Synonyms:virus informatique, ver, logiciel malveillant
3.
nounmasculine

a figurative 'bug' or sudden enthusiasm/obsession for something (e.g., 'the travel bug')

Il a attrapé le virus du voyage et ne pense qu'à préparer sa valise.

He caught the travel bug and only thinks about packing his suitcase.

Synonyms:passion, engouement, mania
virus - French Definition & Examples