Excreta/ɪkˈskriːtə/ Definition 1 of 1Pro Tip 1/3Proper Context Use 'excreta' when discussing waste from a biological or environmental perspective. The study focuses on the effects of excreta on soil quality. Pro Tip 2/3Scientific Tone 'Excreta' is more formal and scientific than words like 'poop' or 'pee'. In the lab, we test animal excreta for pathogens. Pro Tip 3/3Avoid with People It's less common to refer to human waste as 'excreta' in casual conversation. Public toilets must manage human waste effectively.