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generation |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.04 sec. |
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generation 1. the act or process of bringing into being; production or reproduction, esp of offspring 2. a. a successive stage in natural descent of organisms: the time between when an organism comes into being and when it reproduces b. the individuals produced at each stage 3. the normal or average time between two such generations of a species: about 35 years for humans 4. a phase or form in the life cycle of a plant or animal characterized by a particular type of reproduction 5. production of electricity, heat, etc. 6. Physics a set of nuclei formed directly from a preceding set in a chain reaction
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However, the doubling time for an influenza pandemic is less than half that for SARS because of the much shorter generation time for influenza (Table 1). Species with reproductive strategies that maximize reproductive output over a short generation time are more likely to be successful in a novel environment than species, which require longer generation times and/or have lower fecundities (Sakai et al. Using zebrafish because of their short generation time, the researchers measured effects of exposure over three generations. |
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