Digestion definition, the process in the alimentary canal by which food is broken up physically, as by the action of the teeth, and chemically, as by the action of enzymes, and converted into a substance suitable for absorption and assimilation into the body. See more.
digestion: [noun] the action, process, or power of digesting: such as. the process of making food absorbable by mechanically and enzymatically breaking it down into simpler chemical compounds in the digestive tract. the process in sewage treatment by which organic matter in sludge is decomposed by anaerobic bacteria with the release of a ...
Define digestion. digestion synonyms, digestion pronunciation, digestion translation, English dictionary definition of digestion. n. 1. a. The process by which food is converted into substances that can be absorbed and assimilated by a living organism. In most animals it is...
Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma.In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.Digestion is a form of catabolism that is often divided into two processes based on how food is broken down: mechanical and ...
Digestive system definition, the system by which ingested food is acted upon by physical and chemical means to provide the body with absorbable nutrients and to excrete waste products; in mammals the system includes the alimentary canal extending from the mouth to the anus, and the hormones and enzymes assisting in digestion. See more.
Digestive system definition is - the bodily system concerned with the ingestion, digestion, and absorption of food and the discharge of residual wastes and consisting of the digestive tract and accessory glands (such as the salivary glands and the pancreas) that secrete digestive enzymes.
Digestion refers to the breakdown of food into smaller components that can be absorbed into the bloodstream. This digestion or catabolism is divided into two types – the mechanical digestion of ...
digestion [dĭ-jes´chun] 1. the subjection of a substance to prolonged heat and moisture, so as to soften and disintegrate it. 2. the act or process of converting food into chemical substances that can be absorbed into the blood and utilized by the body tissue. Digestion. 1. Carbohydrates: principally starches, lactose, and sucrose. Starches are acted ...
Digestive system: The system of organs responsible for getting food into and out of the body and for making use of food to keep the body healthy.The digestive system includes the salivary glands, mouth, esophagus, stomach, liver, gallbladder, pancreas, small intestine, colon, and rectum. The digestive system's organs are joined in a long, twisting tube from the mouth to the anus.
The digestive system is the group of organs that break down food in order to absorb its nutrients. The nutrients in food are used by the body as fuel to keep all the body systems working. The leftover parts of food which cannot be broken down, digested, or absorbed are excreted as bowel movements (stool).