CEFR C1

variola

noun

Meaning

The virus that causes smallpox, a highly contagious and disfiguring disease that has been eradicated worldwide.

Examples

  • The variola virus is one of the most dangerous pathogens known to humankind.
  • Scientists have preserved samples of the variola virus in secure laboratories for research purposes.

Synonyms: smallpox virus, orthopoxvirus