Noun: deterioration di,teer-ee-u'rey-shun
- Process of changing to an inferior state
"The deterioration of the products was evident after the company changed suppliers";
- decline in quality, declension [archaic], worsening
- A symptom of reduced quality or strength
"The deterioration of the paint job was visible after just one year";
- impairment
Derived forms: deteriorations
Type of: decay, decline, diminution
Encyclopedia: Deterioration