Ecocatastrophe Definition
 ēkōkətastrəfē, ekōkətastrəfē 
    noun
  
 A widespread disturbance or destruction of an ecological system, caused as by an invasive organism or, esp., by human activity.
 Webster's New World 
Origin of Ecocatastrophe
-  
From eco- + catastrophe
From Wiktionary
 
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