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legionella

Syllabification: (le·gion·el·la)

Pronunciation: /ˌlējəˈnelə/

Definition of legionella

noun (plural legionellae /ˌlējəˈnelē, -ˈnelˌī/)

the bacterium that causes legionnaires' disease, flourishing in air conditioning and central heating systems.
- Legionella pneumophila, a motile, aerobic, rod-shaped (or filamentous) Gram-negative bacterium
informal legionnaires' disease.