What is the name of the substance that leaves the stomach, consisting of food combined with stomach acids?

The substance that leaves the stomach, composed of partially digested food mixed with stomach acids, is known as chyme. This thick, semi-liquid mass is generated in the stomach as the food is mixed with gastric juices, which contain hydrochloric acid and digestive enzymes. Chyme is important because it serves as the material that progresses to the small intestine, where further digestion and nutrient absorption occur.

In contrast, a bolus refers to a mass of food that has been chewed and is ready to be swallowed, not the substance that is formed in the stomach. Digestate is a term that may refer to organic material that has been digested, but it is not specifically used in the context of human anatomy and physiology to describe what leaves the stomach. Gastric fluid, while related to the digestive process, encompasses the secretions produced by the stomach but does not specifically refer to the mixture of food and these secretions. Therefore, chyme is the precise term that accurately describes the combination of food and stomach acids as it exits the stomach.