Noun deterioration has 2 senses
  1. deterioration, impairment - a symptom of reduced quality or strength
    --1 is a kind of decay
    --1 has particulars:
     corrosion; devastation, desolation; decrepitude, dilapidation; wear
    Derived forms: verb deteriorate1, verb deteriorate2
  2. deterioration, decline in quality, declension, worsening - process of changing to an inferior state
    --2 is a kind of decline, diminution
    --2 has particulars: slump, slack, drop-off, falloff, falling off
    Derived forms: verb deteriorate1, verb deteriorate2
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