Medical Dictionary
Legionnaires' bacillus
noun Le·gion·naires' bacillus \ˌlē-jə-ˈna(ə)rz-, -ˈne(ə)rz-\
Medical Definition of LEGIONNAIRES' BACILLUS
: a bacterium of the genus Legionella (L. pneumophila) that causes Legionnaires' disease
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