释义 |
ex·og·e·nous \(ˈ)ek|säjənəs\ adjective Etymology: French exogène exogenous + English -ous : produced from without : originating from or due to external causes: as a. : growing from or on the outside < exogenous spores > : growing by addition to the exterior < exogenous stems > b. (1) : caused by a factor (as food) or an agent from outside the organism and not due primarily to structural or functional failure < exogenous obesity > < exogenous heart disease associated with rheumatic fever > — compare endogenous (2) : introduced from or produced outside the organism < exogenous supply of a vitamin > c. : arising from other than hereditary factors < exogenous mental deficiency > d. : of, relating to, or produced by the metabolism or nitrogenous substances obtained from food : dietary < exogenous uric acid > — compare endogenous e. of rocks : composed of materials derived from processes of erosion or produced by metamorphism through contact with adjacent igneous intrusion f. : originating from outside an economic system (as from political, accidental, and technological forces) — compare endogenous • ex·og·e·nous·ly adverb |