ra·pa·cious 
(rə-pāshəs)
(rə-pāshəs)adj.
1. Having or showing a strong or excessive desire to acquire money or possess things; greedy: "dishonest utilities and rapacious energy traders" (Paul Roberts).
2. Living by killing prey, especially in large numbers: rapacious coyotes.
3. Taking things by force; plundering: rapacious pirates.
[From Latin rapāx, rapāc-, from rapere, to seize; see rep- in the Appendix of Indo-European roots.]
ra·pacious·ly adv.
ra·paci·ty (rə-păsĭ-tē), ra·pacious·ness n.