Main Entry: poly·oma·vi·rus

Pronunciation: \ˌpäl-ē-ˈō-mə-\

Function: noun

1 capitalized : the sole genus in a family (Polyomaviridae) of double-stranded DNA viruses that contain a single molecule of DNA, have a capsid composed of 72 capsomers, and induce tumors usually in specific mammals and that include simian virus 40 and the causative agent of progressive multifocal leukoencephalopathy
2 : any of the genus Polyomavirus of double-stranded DNA viruses