Legionnaires' disease

noun
Le·​gion·​naires' disease | \ ˌlē-jə-ˈnerz- How to pronounce Legionnaires' disease (audio) \
variants: or less commonly Legionnaire's disease

Definition of Legionnaires' disease

: pneumonia that is caused by a bacterium (Legionella pneumophila), is characterized initially by symptoms resembling influenza (as malaise, headache, and muscular aches) followed by high fever, cough, diarrhea, severe pneumonia, and mental confusion, and that may be fatal especially in elderly and immunocompromised individuals

First Known Use of Legionnaires' disease

1976, in the meaning defined above

History and Etymology for Legionnaires' disease

from its first recognized occurrence at an American Legion convention in 1976

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Time Traveler for Legionnaires' disease

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The first known use of Legionnaires' disease was in 1976

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Cite this Entry

“Legionnaires' disease.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Legionnaires%27%20disease. Accessed 1 Oct. 2020.

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More Definitions for Legionnaires' disease

Legionnaires' disease

noun
How to pronounce Legionnaires' disease (audio)

English Language Learners Definition of Legionnaires' disease

: a serious disease of the lungs that is caused by bacteria

Legionnaires' disease

noun
variants: also Legionnaire's disease

Medical Definition of Legionnaires' disease

: pneumonia that is caused by a bacterium of the genus Legionella (L. pneumophila), that is characterized initially by symptoms resembling influenza (as malaise, headache, and muscular aches) followed by high fever, cough, diarrhea, lobar pneumonia, and mental confusion, and that may be fatal especially in elderly and immunocompromised individuals — see pontiac fever

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