| Lamarck, Jean-Baptiste | <person> French botanist, zoologist, and biological philosopher, 1744-1829. See: lamarckian theory. (05 Mar 2000) |
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| lamarckian theory | That acquired characteristics may be transmitted to the descendants and that experience, and not biology alone, can change and thereby influence genetic transmission. (05 Mar 2000) |
| lamarckianism | <biology> Lamarckism. Source: Websters Dictionary (01 Mar 1998) |
| lamarckism | <biology> The theory that structural variations, characteristic of species and genera, are produced in animals and plants by the direct influence of physical environments, and especially, in the case of animals, by effort, or by use or disuse of certain organs. Origin: From Lamarck, a distinguished French naturalist. Source: Websters Dictionary (01 Mar 1998) |