- a highly contagious, often fatal viral disease of dogs, characterized by vomiting, severe diarrhea, and depression and accompanied by high fever and loss of appetite.
- any of several small DNA-containing viruses belonging to the genus Parvovirus, of the family Parvoviridae, especially the virus that causes the disease parvovirus in dogs or distemper in cats.
- any of a group of viruses characterized by their very small size, each of which is specific to a particular species, as for example canine parvovirus
