predator
noun
[ ˈprɛdətə ]
• an animal that naturally preys on others.
• "wolves are major predators of small mammals"
• a person who ruthlessly exploits others.
• "a sexual predator"
Origin:
1920s: from Latin praedator ‘plunderer’, from praedat- ‘seized as plunder’, from the verb praedari (see predation).