1. instances or processes of becoming worse in quality, condition, or value
Usage: plural form of deterioration; commonly used in medical, environmental, and technical contexts

Examples

• The deteriorations in air quality have prompted new environmental regulations.
• Multiple deteriorations in the patient's health required immediate hospitalization.
• The building showed several deteriorations in its structural integrity over the decades.
• Deteriorations in cognitive function are common in advanced age.
• The report documented deteriorations in student performance across the district.
• Rapid deteriorations of the road surface made it unsafe for traffic.