1. the quality or state of eating food from both plant and animal sources
Usage: typically used in biological or zoological contexts
2. the quality of being willing to consume or accept a wide variety of things indiscriminately
Usage: figurative use; often applied to reading habits, media consumption, or intellectual interests

Examples

• The omnivorousness of bears allows them to thrive in diverse environments.
• Her omnivorousness when it comes to reading means she enjoys everything from science fiction to historical biographies.
• The omnivorousness of humans has enabled us to settle in nearly every climate on Earth.
• Critics praised the director's omnivorousness in drawing inspiration from multiple artistic traditions.
• The child's omnivorousness at the buffet surprised his parents, as he tried every dish available.