Culling refers to the process of selecting and removing certain individuals from a group or population. This term is commonly used in agriculture, where it means sorting through livestock to remove animals that are unhealthy, injured, or not meeting breeding standards. In this context, culling helps improve the overall health and quality of the herd or flock. The word "cull" can also be used more broadly to refer to any process of selecting and removing items from a larger group based on specific criteria.