auxiliary - Military Science. 1. assisting or supporting a main unit in carrying out its duty or assignment.assisting or supporting a main unit in carrying out its duty or assignment. 2. a person or group that does this.a person or group that does this. ; дс тдрлими цюлютдажкию дроемжки аиакиохдйис лидр http://www.harcourt.com/dictionary/def/9/4/8/7/948700.html;