malaria

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noun ma·lar·ia \mə-ˈler-ē-ə\

Definition of malaria

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

  2. 2 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

malarial

play \-əl\ adjective

malarious

play \-əs\ adjective

Origin and Etymology of malaria

Italian, from mala aria bad air


First Known Use: 1740


MALARIA Defined for English Language Learners

malaria

play
noun ma·lar·ia \mə-ˈler-ē-ə\

Definition of malaria for English Language Learners

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


MALARIA Defined for Kids

malaria

play
noun ma·lar·ia \mə-ˈler-ē-ə\

Definition of malaria for Students

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


Medical Dictionary

malaria

play
noun ma·lar·ia \mə-ˈler-ē-ə\

Medical Definition of malaria

  1. 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—Journal of the American Medical Association>—see falciparum malaria, vivax malaria

  2. 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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