malaria

noun

ma·​lar·​ia mə-ˈler-ē-ə 

1

a

: 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

2

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

especially : miasma

malarial

mə-ˈler-ē-əl 

adjective

malarious

mə-ˈler-ē-əs 

adjective

Examples of malaria in a Sentence

Recent Examples on the Web

Well, malaria, which kills more than 600,000 people per year, is transmitted to humans by female mosquitoes belonging to the genus Anopheles, which, per the National Institute of Allergy and Infectious Diseases, encompasses between 30 and 40 mosquito species. —Abby Monteil, Them, 8 Oct. 2024

Historic rainfall and rising temperatures are driving malaria, cholera and dengue outbreaks, and expanding these diseases into new regions. —Harry Booth, TIME, 26 Sep. 2024

Four things get you 85 percent of those deaths: malaria, pneumonia, diarrhea, and then a bunch of things that can kill you in your first 30 days. —Dylan Scott, Vox, 19 Sep. 2024

Over time, modern medicine has eradicated some of the most devastating diseases in the U.S., like smallpox, polio, rubella, malaria, and diphtheria. —Allison Futterman, Discover Magazine, 10 Sep. 2024

Word History

Etymology

Italian, from mala aria bad air

First Known Use

1740, in the meaning defined at sense 2

Phrases Containing malaria

• anti-malaria
• falciparum malaria
• vivax malaria

Kids Definition

malaria

noun

ma·​lar·​ia mə-ˈler-ē-ə 

: a disease caused by protozoan parasites in the red blood cells, passed from one individual to another by the bite of mosquitoes, and marked by periodic attacks of chills and fever

malarial

-ē-əl 

adjective

Medical Definition

malaria

noun

ma·​lar·​ia mə-ˈler-ē-ə 

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 world

—The Journal 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