1. the quality or state of being predacious; the characteristic of living by preying on other animals.
Usage: formal; often used in biology and ecology contexts
2. the tendency to exploit or prey upon others; rapacity or greed.
Usage: figurative

Examples

• The predaceousness of the hawk makes it an efficient hunter in the ecosystem.
• Marine biologists study the predaceousness of deep-sea creatures to understand ocean food chains.
• The corporation's predaceousness toward smaller competitors drew regulatory scrutiny.
• The predaceousness displayed by the invasive species threatened native populations.
• His predaceousness in business dealings earned him a reputation as ruthless.
• The predaceousness of certain insects makes them valuable for pest control.