ro·​se·​o·​la | \ˌrō-zē-ˈō-lə, rō-ˈzē-ə-lə \

Definition of roseola 

: a rose-colored eruption in spots or a disease marked by such an eruption especially : roseola infantum

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Other Words from roseola

roseolar \ ˌrō-​zē-​ˈō-​lər , rō-​ˈzē-​ə-​lər \ adjective

Examples of roseola in a Sentence

Recent Examples on the Web

Those herpes strains, which cause a mild childhood disease called roseola, are found in 90 percent of children in the United States and usually go dormant in childhood, but can reactivate in times of illness or stress. Jason Daley, Smithsonian, "Childhood Virus May Have a Role in Alzheimer’s Disease," 23 June 2018 The treatment for both coxsackie virus and roseola are typically the same - keep your child hydrated, manage the fever with Tylenol or Motrin, and watchful rest. Gabriela Moraru, M.d., miamiherald, "My child has a rash! What should I do? | Miami Herald," 1 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'roseola.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of roseola

1807, in the meaning defined above

History and Etymology for roseola

New Latin, from Latin roseus rosy, from rosa rose

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The first known use of roseola was in 1807

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More Definitions for roseola


ro·​se·​o·​la | \ˌrō-zē-ˈō-lə, rō-ˈzē-ə-lə \

Medical Definition of roseola 

: a rose-colored eruption in spots or a disease marked by such an eruption especially : roseola infantum

Other Words from roseola

roseolar \ -​lər \ adjective

More from Merriam-Webster on roseola

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Comments on roseola

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


playful or foolish behavior

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