1. A genus of pathogenic bacteria that can cause serious foodborne illness, especially in pregnant women, newborns, and immunocompromised individuals.
Usage: Medical/scientific term; Usually capitalized when referring to the genus; Commonly used in food safety and public health contexts

Examples

• Listeria contamination was found in the recalled deli meat products.
• Pregnant women are advised to avoid foods that may contain listeria.
• The outbreak of listeria sickened dozens of people across multiple states.
• Listeria monocytogenes is the most common species that infects humans.
• Food safety inspectors test for listeria in dairy and produce facilities.