Definition of "fitnesses" [fitnesses]

• Plural form of fitness. (noun)

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• "If, starting from this point of view, we regard human life as comprising an infinite number of activities of different sorts, operating upon different planes of competition and educating different human "fitnesses," we shall understand how the particular phase of industrial evolution we are considering is related to the wider philosophic view of life."
• "Different groups have different fitnesses, depending on the proportion of altruists."
• "For one, inclusive fitness can only be defined when the fitnesses of all individuals in the population are almost identical, with vanishingly small differences."