Medical Dictionary

roseola infantum

noun roseola in·fan·tum \-in-ˈfant-əm\

Medical Definition of ROSEOLA INFANTUM

:  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


How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears