Excreta and Stool

Excreta noun - Waste matter (as urine or sweat but especially feces) discharged from the body.

Stool and excreta are semantically related in excretion topic. In some cases you can use "Stool" instead a noun "Excreta", when it comes to topics like excrement, feces.

Stool noun - Solid excretory product evacuated from the bowels.

Excreta and stool are semantically related in excrement topic. You can use "Excreta" instead a noun "Stool", if it concerns topics such as feces.