Definition, Meaning & Synonyms

virus

Noun
/ˈvaɪrəs/
Definition
A virus is a small infectious agent that can replicate only inside the living cells of an organism.
Examples
  • After getting the virus, he took a week off to recover.
  • The flu virus spreads easily in crowded places.
  • Scientists are researching ways to combat the new virus.
Meaning
Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
Synonyms
  • germ
  • pathogen
  • microbe