Noun exculpation has 2 senses
  1. excuse, alibi, exculpation, self-justification - a defense of some offensive behavior or some failure to keep a promise etc.; "he kept finding excuses to stay"; "every day he had a new alibi for not getting a job"; "his transparent self-justification was unacceptable"
    --1 is a kind of defense, defence, vindication
    --1 has particulars: extenuation, mitigation
  2. exculpation - the act of freeing from guilt or blame
    --2 is a kind of
    forgiveness, pardon
    Derived form: verb exculpate1