smallpox

noun

small·​pox ˈsmȯl-ˌpäks How to pronounce smallpox (audio)
: an acute contagious febrile disease of humans that is caused by a poxvirus (species Variola virus of the genus Orthopoxvirus), is characterized by a skin eruption with pustules, sloughing, and scar formation, and is believed to have been eradicated globally by widespread vaccination

called also variola

Examples of smallpox in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Part of the same family as the virus that causes smallpox, it is caused by a type of virus typically found in West and Central Africa. Thomas G. Moukawsher, MSNBC Newsweek, 24 Apr. 2025 Thanks to new vaccines, doctors had a way to prevent measles, the WHO launched a campaign to eradicate smallpox, and polio seemed on its way out. Roxanne Khamsi, The Atlantic, 11 Mar. 2025 Starting in the late 1960s, for instance, USAID helped lead the effort to eliminate smallpox and has also helped fight polio and other devastating diseases over the past six decades. Nicole Hassoun, The Conversation, 25 Feb. 2025 Same with smallpox – eradicated from the entire globe because of a vaccine, and the same with Ebola and the same with measles, and on and on. Michael B. Teiger, Hartford Courant, 21 Jan. 2025 See All Example Sentences for smallpox

Word History

First Known Use

circa 1562, in the meaning defined above

Time Traveler
The first known use of smallpox was circa 1562

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Cite this Entry

“Smallpox.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/smallpox. Accessed 30 Apr. 2025.

Kids Definition

smallpox

noun
small·​pox ˈsmȯl-ˌpäks How to pronounce smallpox (audio)
: a sometimes deadly disease that is caused by a virus, is characterized by fever and a skin rash, and is believed to have been wiped out worldwide as a result of vaccination

Medical Definition

smallpox

noun
small·​pox ˈsmȯl-ˌpäks How to pronounce smallpox (audio)
: an acute contagious febrile disease of humans that is caused by a poxvirus of the genus Orthopoxvirus (species Variola virus), is characterized by skin eruption with pustules, sloughing, and scar formation, and is believed to have been eradicated globally by widespread vaccination

called also variola

see variola major, variola minor

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