roseola infantum

noun
roseola in·​fan·​tum | \ -in-ˈfan-təm How to pronounce roseola infantum (audio) \

Definition of roseola infantum

: a mild virus disease of infants and children marked by fever lasting usually three days followed by an eruption of rose-colored spots and caused by a herpesvirus (species Human herpesvirus 6 of the genus Roseolovirus)

First Known Use of roseola infantum

circa 1935, in the meaning defined above

History and Etymology for roseola infantum

borrowed from New Latin, "roseola of infants"

Keep scrolling for more

Learn More about roseola infantum

Time Traveler for roseola infantum

Time Traveler

The first known use of roseola infantum was circa 1935

See more words from the same year

Statistics for roseola infantum

Cite this Entry

“Roseola infantum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/roseola%20infantum. Accessed 23 Nov. 2020.

Keep scrolling for more

More Definitions for roseola infantum

roseola infantum

noun
roseola in·​fan·​tum | \ -in-ˈfant-əm How to pronounce roseola infantum (audio) \

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

More from Merriam-Webster on roseola infantum

Britannica.com: Encyclopedia article about roseola infantum

Comments on roseola infantum

What made you want to look up roseola infantum? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble tiles that read scrabble quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!