scarlet fever

noun

: an acute contagious febrile disease caused by hemolytic Group A streptococci and characterized by inflammation of the nose, throat, and mouth, generalized toxemia, and a red rash

Examples of scarlet fever in a Sentence

Recent Examples on the Web
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Willie Fay Lewis, Ann Allan’s mother, founded the Lighthouse for the Blind in 1935 after losing her eyesight as a young girl due to scarlet fever. — Matthew Adams, Fort Worth Star-Telegram, 17 Sep. 2026 In 1858, Louisa May Alcott’s younger sister, Elizabeth, died from complications of scarlet fever, just as the fictional Beth would in the novel, published a decade later. — Sarah Chihaya, Vulture, 16 July 2026 But nothing competes with the painful deterioration of her sight after contracting scarlet fever. — Ryan Coleman, Entertainment Weekly, 3 July 2026 After it, among other things, there was scarlet fever and severe anemia, which is to say illness has been an ever-present houseguest. — Literary Hub, 15 May 2026 See All Example Sentences for scarlet fever

Word History

First Known Use

circa 1651, in the meaning defined above

Time Traveler
The first known use of scarlet fever was circa 1651

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Cite this Entry

“Scarlet fever.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/scarlet%20fever. Accessed 3 Oct. 2026.

Kids Definition

scarlet fever

noun
: a contagious disease caused by a bacterium and characterized by fever, swelling, pain in the nose, throat, and mouth, and a red rash

Medical Definition

scarlet fever

noun
: an acute contagious febrile disease caused by Group A bacteria of the genus Streptococcus (especially various strains of S. pyogenes) and characterized by inflammation of the nose, throat, and mouth, generalized toxemia, and a red rash

called also scarlatina

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