intervention intervention /ˌɪntɝˈvɛnʃən/

noun

1. () The act of intervening (as to mediate a dispute, etc.)  ( intercession , intervention )
   the act of intervening (as to mediate a dispute, etc.)
    It occurs without human intervention
   it occurs without human intervention
   
2. Care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)  ( intervention , treatment )
   care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)
     The patient underwent an intensive course of treatment for their illness.
   The patient underwent an intensive course of treatment for their illness.
   
3. (law) a proceeding that permits a person to enter into a lawsuit already in progress; admission of person not an original party to the suit so that person can protect some right or interest that is allegedly affected by the proceedings  ( intervention )
   (law) a proceeding that permits a person to enter into a lawsuit already in progress; admission of person not an original party to the suit so that person can protect some right or interest that is allegedly affected by the proceedings
    The purpose of intervention is to prevent unnecessary duplication of lawsuits
   the purpose of intervention is to prevent unnecessary duplication of lawsuits
   
4. The act or fact of interposing one thing between or among others  ( interposition , intervention )
   the act or fact of interposing one thing between or among others
   
5. A policy of intervening in the affairs of other countries  ( intervention , interference )
   a policy of intervening in the affairs of other countries