Main Entry: roseola in·fan·tum

Pronunciation: \-in-ˈfant-əm\

Function: noun

: a mild virus disease of infants and children that is characterized by fever lasting three days followed by an eruption of rose-colored spots and is caused by a herpesvirus (species Human herpesvirus 6 of the genus Roseolovirus)—called also exanthema subitum, exanthem subitum