[taking in or incorporation of gaseous or liquid substances, including the metabolic absorption of exogenous nutrients, chemicals, and drugs into the gastrointestinal system and passage into the bloodstream; however use narrower terms for drug, toxin or nutrient absorption. ( CSP )]
UMLS (CSP) C0178651 Relation/PAR: gastrointestinal function
Relation/CHD: gastrointestinal drug absorption
gastrointestinal nutrient absorption
gastrointestinal toxin absorption