Rapacious (adjective)

1. Having or showing an extreme greed for material wealth or gain.
2. Having or showing an insatiable appetite for an activity or pursuit.

Origin:

From latin rapax, rapac- ("seizing, greedy, ravenous, rapacious"), from rapere ("to seize, snatch, gra.b")

Examples:

1. The rapacious businessman cared only about making a profit.
2. Rapacious developers are destroying the natural habitats of many animals.
3. Rapacious investors were buying up all the stock they could get their hands on.
4. He was a rapacious reader, devouring books by the dozens.
5. Rapacious hunters were decimating the population of wild animals.