9 letters · 13 points in Scrabble
adjective living by preying on other animals especially by catching living prey
adjective excessively greedy and grasping
adjective devouring or craving food in great quantities
originPerhaps from rapacity + -ous, in any case ultimately from Latin rapāx (“grasping, greedy”).
Etymology from Wiktionary, CC BY-SA 3.0