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Anagenesis

/ˌæn.əˈdʒɛn.ɪs/
nounCEFR C1 (Advanced)Top #15000 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A mode of evolution in which a species evolves into a new species without branching off into separate lineages.

    "The evolution of the horse from its ancestors is often cited as an example of anagenesis."
  2. 2

    The gradual transformation of a species over time, leading to significant changes in its characteristics.

    "Anagenesis can be observed in the fossil record where species show a continuous change in form."

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Linguistic Origin & Historical Etymology

The term 'anagenesis' originates from the Greek words 'ana-' meaning 'up' or 'back' and 'genesis' meaning 'origin' or 'creation'. It was first used in the context of evolutionary biology in the late 20th century to describe a form of evolution that occurs without branching.

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