Feces is the solid waste that animals and people eliminate from their bodies after digesting food. When you eat, your body absorbs the nutrients it needs and packages what's left into feces, which leaves through the intestines.

Scientists and doctors use this technical term instead of casual words like “poop.” You might hear a veterinarian talk about examining an animal's feces to check its health, or a biologist studying how feces helps fertilize soil in forests. Different animals produce different types of feces: herbivores like rabbits produce small, dry pellets, while carnivores produce something quite different.

Throughout history, understanding feces has been important for public health. Before modern sewage systems, improperly managed human feces spread diseases through water supplies. Today, wastewater treatment plants process feces safely, protecting communities from illness.

Feces is considered the proper, scientific term. When you're writing a research report about animal digestion or discussing health topics seriously, feces is the appropriate word to use. In everyday conversation, people typically use informal terms instead, but knowing scientific vocabulary helps you communicate clearly in academic or medical contexts.