leishmania

noun

leish·​man·​ia lēsh-ˈma-nē-ə How to pronounce leishmania (audio)
plural leishmanias or leishmania
: any of a genus (Leishmania) of parasitic, flagellate protozoans that cause leishmaniasis, are transmitted by the bite of sand flies (genus Phlebotomus and Lutzomyia), and occur in an motile, extracellular form within the gut of sand flies and a nonmotile, intracellular form within the macrophages of mammalian hosts
broadly : a protozoan resembling the leishmanias that is included in the family (Trypanosomatidae) to which they belong
leishmanial adjective
leishmanial parasites

Word History

Etymology

New Latin, from Sir W. B. Leishman †1926 British medical officer

First Known Use

1904, in the meaning defined above

Time Traveler
The first known use of leishmania was in 1904

Dictionary Entries Near leishmania

Cite this Entry

“Leishmania.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leishmania. Accessed 1 Dec. 2024.

Medical Definition

leishmania

noun
leish·​man·​ia lēsh-ˈman-ē-ə How to pronounce leishmania (audio) -ˈmān- How to pronounce leishmania (audio)
1
Leishmania : a genus of parasitic, flagellate protozoans of the family Trypanosomatidae that are the causative agents of leishmaniasis, are transmitted by sand flies (genera Phlebotomus and Lutzomyia), and occur as motile, extracellular promastigotes within the gut of sand flies and transform into nonmotile, intracellular amastigotes within the macrophages of mammalian hosts
2
plural leishmanias or leishmaniae : any protozoan of the genus Leishmania
broadly : any protozoan of the family Trypanosomatidae having the typical intracellular form of a leishmania
leishmanial adjective
leishmanial parasites
leishmanial infection
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