Fitness

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Fitness Meaning and Definition in Dictionary

Definitions from Wordnet 2.0


  • the condition of being suitable; "they had to prove their fitness for the position"
  • the quality of being qualified
  • good physical condition; being in shape or in condition
  • fitness to traverse the seas

Definitions from Wiktionary


  • the condition of being suitable; "they had to prove their fitness for the position" ,
  • good physical condition; being in shape or in condition ,
  • fitness to traverse the seas ,
  • the quality of being qualified

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Fitness Meaning and Definition in Wikipedia


Fitness in biology is the relative ability of an organism to survive and pass on its genes to the next generation.p160 It is a central idea in evolutionary theory. Fitness is usually equal to the proportion of the individual's genes in all the genes of the next generation.

Like all terms in evolutionary biology, fitness is defined in terms of an interbreeding population, which might or might not be a whole species. If differences in individual genotypes affect fitness, then the frequencies of the genotypes will change over generations; the genotypes with higher fitness become more common. This is the process called natural selection.

An individual's fitness is caused by its phenotype, and passed on by its genotype. The fitnesses of different individuals with the same genotype are not necessarily equal. It depends on the environment in which the individuals live, and on accidental events. However, since the fitness of the genotype is an averaged quantity, it reflects the reproductive outcomes of all individuals with that genotype.



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'Fitness' example sentence in quotations


* Parentage is a very important profession, but no test of fitness for it is ever imposed in the interest of the children. - George Bernard Shaw

* The most important quality in a leader is that of being acknowledged as such. All leaders whose fitness is questioned are clearly lacking in force. - Andr Maurois

* Parentage is a very important profession, but no test of fitness for it is ever imposed in the interest of the children. - Sir Walter Besant


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