Predaceous; pertaining to preying; living on prey. predacity,
Hunting and killing other animals for food.
Living by prey; predatory

ETYM Latin praedatorius, from praedari to plunder, from praeda prey. Related to Prey.
Living by preying on other animals especially by catching living prey; SYN. rapacious, raptorial, ravening, vulturine, vulturous.
Pertaining to or living by plundering; destructive.

In a piratical manner.