viru-, vir-

1. A rod-shaped virus that contains RNA; that is, the virus that causes rabies.
2. Any of various RNA-containing viruses of the family Rhabdoviridae, including the rabies virus.

Any of a subgroup of the picornaviruses considered to be etiologically associated with the common cold and certain other upper respiratory ailments.

The angst of being infected with a virus or a microorganism that is smaller than a bacterium: Some people have virophobias because when ultramicroscopic infectious agents enter a cell, they may immediately cause a disease process or an illness may appear years later.

The killing of viruses.