mal ‧ e ‧ fac ‧ tor /ˈmæləfæktə, ˈmælɪfæktə $ -ər/ BrE AmE noun [countable]
[ Date: 1400-1500 ; Language: Latin ; Origin: malefacere 'to do evil' ]
old-fashioned formal someone who does bad or illegal things
mal ‧ e ‧ fac ‧ tor /ˈmæləfæktə, ˈmælɪfæktə $ -ər/ BrE AmE noun [countable]
[ Date: 1400-1500 ; Language: Latin ; Origin: malefacere 'to do evil' ]
old-fashioned formal someone who does bad or illegal things
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012