1. To seek plunder or to prey: The newspapers carried reports that the grasshoppers were ravening the countryside and destroying the crops.
2. To eat, to feed, or to devour voraciously or greedily: With his appetite, he ravened like an animal.
3. To seize as spoil or as prey: The invading enemy hordes attempted to raven the treasury of all the gold.

1. Pertaining to being excessively greedy and grasping: Hank's most ravening appetite for money often leads him to speculate on the stock market.
2. A reference to gulping down or craving food in great quantities: Under a microscope, the protozoan appeared to have ravening appetites for minute particles of nutrients.
3. A description of animals that survive by preying on other animals; especially, by catching living prey: The more ravening habits of the coyotes in the wild conflicted with the habits of the domestic animals of the farmers.