DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   explanation
       n 1: a statement that makes something comprehensible by
            describing the relevant structure or operation or
            circumstances etc.; "the explanation was very simple"; "I
            expected a brief account" [syn: explanation, account]
       2: thought that makes something comprehensible
       3: the act of explaining; making something plain or
          intelligible; "I heard his explanation of the accident"