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Legionella
Legionellanouna genus of rod- or coccus-shaped aerobic Gram-negative bacteria, certain species of which, as L. pneumophila, produce legionnaires' disease.
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legionella
legionellanounany Gram-negative rod-shaped bacterium of the genus Legionella, including L. pneumophila, which causes legionnaire's disease
Legionella
Americannoun
noun
Etymology
Origin of Legionella
< New Latin (1979), after legionnaires' disease; see -ella
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
“Hot tubs can be a source of Legionella growth and transmission when they are inadequately maintained and operated,” the CDC said.
From Los Angeles Times ● May 18, 2026
Kaiser Permanente is still trying to determine the source of bacteria responsible for 19 recent cases of Legionella infection identified at a hospital in the San Francisco Bay Area.
From Los Angeles Times ● May 18, 2026
Other ways facility managers can reduce the risk of Legionella include disinfecting cooling towers and water systems, establishing a water management program and routinely performing water system maintenance.
From Los Angeles Times ● May 18, 2026
Following her diagnosis, the Greek health ministry issued a statement to hoteliers in Crete to "raise awareness among all those involved in monitoring the quality of water for human consumption especially with regard to Legionella".
From BBC ● Jun. 21, 2025
That followed problems, including traces of Legionella bacteria being found in the vessel’s on-board water system, days after the first asylum seekers boarded in August 2023.
From BBC ● Oct. 31, 2024
Legionnaires' disease, caused by the legionella bacteria, can result in a severe form of pneumonia.
From Reuters ● Sep. 14, 2023
It's important not to set it any lower as it could create a health risk - legionella bacteria could develop in the water.
From BBC ● Dec. 11, 2022
Lowering the hot water temperature too much can allow the growth of bacteria, including legionella.
From BBC ● Oct. 3, 2022
Flint's water also contained trihalomethane, a carcinogen, as well as dangerous E. coli and legionella bacteria.
From Salon ● Nov. 26, 2021
Last year, patients at St. Elizabeths Hospital, the District’s public psychiatric facility, filed a federal lawsuit faulting its response after legionella bacteria, which can cause Legionnaires’ disease, was discovered in the hospital’s water system.
From Washington Post ● May 26, 2020
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.