1. Microorganisms (bacteria or archaea) that break down nitrates and nitrites, converting them into nitrogen gas or other nitrogen compounds, typically in anaerobic conditions.
Usage: plural form; technical/scientific term; commonly used in microbiology, environmental science, and wastewater treatment

Examples

• Denitrifiers play a crucial role in the nitrogen cycle by converting nitrates back into atmospheric nitrogen.
• Wastewater treatment plants rely on denitrifiers to remove excess nitrogen from effluent.
• In anaerobic environments, denitrifiers thrive and help reduce nutrient pollution in water bodies.
• Scientists study denitrifiers to understand how they contribute to greenhouse gas emissions.
• The presence of denitrifiers in soil is essential for maintaining nitrogen balance in ecosystems.