1. Plural of legionella; rod-shaped bacteria that can cause a serious respiratory infection, typically transmitted through contaminated water systems.
Usage: medical/scientific term; usually used in plural form; refers to the genus Legionella

Examples

• The water testing revealed the presence of legionellas in the building's cooling system.
• Legionellas can grow in warm water environments such as hot tubs and air conditioning units.
• Public health officials investigated the outbreak of legionellas at the hospital.
• Proper maintenance of water systems helps prevent the growth of legionellas.
• The laboratory identified multiple strains of legionellas in the contaminated sample.