s, a, o, l, r, i, u, v are letters that make 'variola virus'
IOL, la, IR, VA, ar, var, RI, virus, vi, VI, Rio, Rus, US, AR, LA, Io, variola, Ar, Ir, La, Ru, ola are words within 'variola virus'
1 possible definitions for 'variola virus'
Under this definition, variola virus is a noun and has the following properties:
smallpox virus has the same meaning as variola virus
'variola virus' can be a type of poxvirus.
variola major, variola major virus, variola minor, variola minor virus are types of 'variola virus'.