1. abnormal depression in numbers of white blood cells. 2. the name of a disease caused by feline parvovirus; see feline panleukopenia.
feline p. virus — feline parvovirus; the etiologic agent of feline panleukopenia.
p.-like syndrome — is characterized by decreased numbers of leukocytes, often an anemia and thrombocytopenia, resembling clinically infection by the feline panleukopenia virus. Occurs in cats infected by feline leukemia virus.