ma·lar·ia | \ mə-ˈler-ē-ə \

Definition of malaria 

1 archaic : air infected with a noxious substance capable of causing disease especially : miasma

2a : a human disease that is caused by sporozoan parasites (genus Plasmodium) in the red blood cells, is transmitted by the bite of anopheline mosquitoes, and is characterized by periodic attacks of chills and fever

b : any of various diseases of birds and mammals caused by blood protozoans

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Other words from malaria

malarial \-əl \ adjective
malarious \-əs \ adjective

Examples of malaria in a Sentence

Recent Examples on the Web

For example, buying 1,000 mosquito bed nets in areas affected by malaria is almost guaranteed to save some human lives. Derek Thompson, The Atlantic, "Is Colonizing Mars the Most Important Project in Human History?," 29 June 2018 But neither of those approaches is expected to work very well on malaria in the Americas. Megan Molteni, WIRED, "How ‘Self-Limiting’ Mosquitos Can Help Eradicate Malaria," 21 June 2018 Since being thrust into chaos, Venezuela has seen either a reemergence or a resurgence of other infectious diseases including diphtheria, tuberculosis, measles and malaria. Stefano Pozzebon And Susan Scutti, CNN, "Polio re-emerges in Venezuela nearly 30 years after eradication," 11 June 2018 People can take drugs to prevent infection, but malaria is a disease of poverty. NBC News, "These volunteers want to get malaria. The goal? A better vaccine.," 15 June 2018 Tony Nolan, a molecular biologist at Imperial College London who is part of a team developing gene drives in malaria-carrying mosquitoes, is excited to see that gene drives can, at least, work in rodents. Ewen Callaway, Scientific American, "Controversial CRISPR “Gene Drives” Tested in Mammals for the First Time," 10 July 2018 In tropical regions, people instead contend with malaria, yellow fever, dengue, chikungunya and Zika viruses. Heath Macmillan, Smithsonian, "Why Some Summers Are So Appealing For Mosquitoes," 22 June 2018 That’s the tech that Oxitec plans on developing for the malaria-carrying Anopheles albimanus. Megan Molteni, WIRED, "How ‘Self-Limiting’ Mosquitos Can Help Eradicate Malaria," 21 June 2018 More diseases on the way: This is why Hoosiers may soon have to worry about diseases such as malaria and Zika Technology aids agribusiness: 3 IU grads run business with a buzz to save the bees What are the most common diseases from such bites? Dwight Adams, Indianapolis Star, "Diseases from mosquito and tick bites are on rise in U.S. Here's what you can do about it.," 1 May 2018

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

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First Known Use of malaria

1740, in the meaning defined at sense 1

History and Etymology for malaria

Italian, from mala aria bad air

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Statistics for malaria

Last Updated

10 Sep 2018

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Time Traveler for malaria

The first known use of malaria was in 1740

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English Language Learners Definition of malaria

medical : a serious disease that causes chills and fever and that is passed from one person to another by the bite of mosquitoes


ma·lar·ia | \ mə-ˈler-ē-ə \

Kids Definition of malaria

: a serious disease with chills and fever that is spread by the bite of a mosquito


ma·lar·ia | \ mə-ˈler-ē-ə \

Medical Definition of malaria 

1 : an acute or chronic disease caused by the presence of sporozoan parasites of the genus Plasmodium in the red blood cells, transmitted from an infected to an uninfected individual by the bite of anopheline mosquitoes, and characterized by periodic attacks of chills and fever that coincide with mass destruction of blood cells and the release of toxic substances by the parasite at the end of each reproductive cycle malaria remains the greatest single cause of debilitation and death throughout the worldJournal of the American Medical Association — see falciparum malaria, vivax malaria

2 : any of various diseases of birds and mammals that are more or less similar to malaria of human beings and are caused by blood protozoans

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