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English definition of “homologous”

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homologous

adjective uk   /hə.mɒl.ə.ɡəs/ us    /hoʊˈmɑː.lə-/
formal biology having a similar position, structure, value, or purpose specialized in biology, having the same origin although now having a different purpose or shape as a result of evolution (= gradual change over millions of years): The wing of a bat and the arm of a man are homologous structures.
(Definition of homologous from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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