| exogen | <botany> A plant belonging to one of the greater part of the vegetable kingdom, and which the plants are characterised by having c wood bark, and pith, the wood forming a layer between the other two, and increasing, if at all, by the animal addition of a new layer to the outside next to the bark. The leaves are commonly netted-veined, and the number of cotyledons is two, or, very rarely, several in a whorl. Cf. Endogen. Origin: Exo- + -gen: cf. F. Exogene. Source: Websters Dictionary (01 Mar 1998) |
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| exogenetic | <biology> Arising or growing from without; exogenous. Source: Websters Dictionary (01 Mar 1998) |
| exogenic toxicosis | Any disease caused by a poison introduced from without and not generated within the body. (05 Mar 2000) |
| exogenote | <molecular biology> The fragment of new genetic material that has been added to a bacterial genome by the process of genetic recombination or by genetic engineering. Compare: endogenote. (09 Oct 1997) |
| exogenous | <biology> Developed or originating outside the organism, as exogenous disease. Origin: Gr. Gennan = to produce (18 Nov 1997) |
| exogenous creatinine clearance | A term distinguishing measurements based on infusing creatinine intravenously to raise its plasma concentration and facilitate its accurate chemical determination. (05 Mar 2000) |
| exogenous cycle | The portion of a parasitic life cycle occurring outside the host. (05 Mar 2000) |
| exogenous depression | Similar signs and symptoms as endogenous depression but the precipitating factors are social or environmental and outside the individual. (05 Mar 2000) |
| exogenous DNA | <molecular biology> DNA originating outside an organism. (09 Oct 1997) |
| exogenous fibres | Nerve fibre's by which a given region of the central nervous system is connected with other regions; the term applies to both afferent and efferent fibre connections. (05 Mar 2000) |
| exogenous ochronosis | Pigmentation of the skin of the face and elsewhere from prolonged topical exposure to hydroquinone-containing bleaching creams. (05 Mar 2000) |
| exogenous pigmentation | Discoloration of the skin or tissues by a pigment introduced from without. (05 Mar 2000) |