• Microevolution

    Origin

    - + evolution

    Full definition of microevolution

    Noun

    microevolution

    (plural microevolutions)
    1. small-scale changes in the history of life, such as changes in allele frequencies in a population (over a few generations); also known as change at or below the species level.

    Usage notes

    The term microevolution was introduced to distinguish small-scale patterns of evolution from extinction and large-scale factors, which are termed macroevolution.

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